3D-printed products and 3MF downloads from Roxium in Burlington, Ontario

An impossible passthrough built as a pyramid: the parts pass through one another and no amount of turning lets them go. 2.8" tall, about 21 g of plastic.

Design by BeninManc

A gyro fidget spinner: three curved rings interlock around a centre post and whirl as one, so it prints in a single piece with no bearings and no assembly - just flick it and go. The rings are loose in their track out of the printer, which is the part that takes a few tries to get right and the reason this one gets measured before it ships.

A printable reading ruler with an integrated bookmark pointer. The pointer holds your line while you read and marks your place when the book closes - pick the length that suits your book.

Two spirals in one print: an outer shell that twists one way and a core that twists the other, turning past each other as you fiddle. Printed in a single colour it reads as one tapering cone; give the shell and the core a colour each and the two spirals separate in the eye as they turn, which is what the designer's own pictures show. The profile that prints it is 0.2 mm layers, 3 walls, 15 per cent gyroid infill, PLA, no supports, standing upright exactly as supplied.

Design by NerdHerder

A pencil holder wearing a puffer jacket: quilted panels all round, with a zip, a collar and sleeves running up the sides. It holds pens, pencils, markers, brushes or small tools, and it is sturdy enough to be knocked about a desk. About two hours of printing, and the quilted panels take filament colours well - solid winter colours, pastels, or something loud.

Design by Sitsero

A hard hat that goes on a keyring - the dome, the brim and the little ridge down the middle, printed in one piece with a hole through the top. 1.5" across, and it works as a key tag or a desk charm.

Design by astavr

An impossible passthrough shaped like an hourglass: two halves that turn through each other and stay locked together. 2.8" tall, about 24 g of plastic.

Design by BeninManc

A phone stand with a woodgrain surface that all but disappears behind the phone, so what you see is the screen standing on the desk rather than the stand holding it. A deep groove with a lipped front edge takes a phone upright for video calls or on its side for standBy and night-clock mode, and it fits anything from a small handset up to a Pro Max. Printed in PLA at 0.2 mm layers, 15% infill, no supports. It is designed for a wood-fill filament, which gives it the grain it is named for, though any matte colour prints just as well. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by M_LAB

A ghost bookmark: a flat spectre that hooks over the page, thin enough not to splay the spine. There are seven of them in the file, each a slightly different ghost, so pick the one you want - about 1.2" by 4" and printed flat. Shown as a render, not a photo.

Design by PrintcessJacqueline3DDesigns

A clicker keychain with four buttons that press and click, printed in place so nothing needs assembling. Shown as a render, not a photo.

Design by Print3DFamilyFidgets

A star that spins: the points are cut so it turns on its axis in the hand and keeps turning. Shown as a render, not a photo.

Design by CreaitivityStudio

A thin blade for digging the lint out of a phone's charging port, with a hook at one end and a flat scraper at the other. 34 mm long and a fraction of a gram, so it prints three at a time in a minute - one for the desk, one for the car, one to lose. Shown as a render, not a photo.

Design by eclien

A beer crate for batteries, scaled down to sit on a shelf: stacked sides, a slotted top and a handle you can actually lift it by. Holds a row of AA or AAA cells - pick which, they are separate crates. About 2.7" long. Shown as a render, not a photo.

Design by JSBallpython

A hexagonal tube cut into one continuous spiral, so it springs and flexes in the hand and the turns of the helix roll past each other under a thumb. It prints as a single piece and needs no assembly, and it stands 2.8" tall by 1.3" across. Shown as a render, not a photo.

Design by NerdHerder

A desk caddy printed in one piece: a raised back that stands a phone at a reading angle, a round well for pens, and a square tray for a watch, keys or a card, with a slot for a charging cable to pass through. It is 7.1" wide by 3.5" deep. Shown as a render, not a photo.

Design by Maker76

A flat key tag that holds the key by its bow rather than its ring, so it lies flat in a pocket and does not rattle. 2.2" long, about 1 g of plastic, printed in one piece. Shown as a render, not a photo.

Design by Katejot2017

A planetary gear set printed in place: six small gears mesh between a sun gear and a toothed ring, so turning any one of them turns all the rest. It is 2.5" across and prints as a single piece with nothing to snap together. Shown as a render, not a photo.

Design by HurtTree

Ten layered fidget discs off one plate - each about 3" across, each with its own cut-through pattern and its own way of spinning and clicking. Pick the design you want; the picture on each chip is that disc. Shown as a render, not a photo.

Design by PenguinPrototypes

A hexagonal fidget that prints flat in a few minutes and clicks between your fingers - no supports, no assembly, no settings to tune. 2.0" across. Shown as a render, not a photo.

Design by LangHjornArt

A ball that screws into its own cage - the thread holds it, and it spins from one end to the other without ever coming free. 3.9" tall, printed in place in two pieces that come off the plate already assembled. Shown as a render, not a photo.

Design by Elaak

A shelf that hangs under a shelf: it clips over the front edge of an existing board and gives you a second tier in the gap, for mugs, spice jars or a router. 6.9" wide, printed in one piece. Shown as a render, not a photo.

Design by PanteraRuber

A napkin holder with an open frame: a stack of serviettes sits in the base and the side wall holds them upright, so you can take one without the rest following. 6.3" long, printed in one piece. Shown as a render, not a photo.

Design by Jyffen

Winter forest deer ornaments: three deer among trees, cut as flat silhouettes with a hole to hang each one. 3.4" each, about 21 g of plastic for the set of three. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by Walter3D

Eight napkin rings shaped like sea creatures - starfish, shells and fish - each holding a folded napkin on its side. About 3" across, printed flat in one colour or several. Shown as a render, not a photo.

Design by adnamantino

A ribbon Christmas tree with a bow: flat loops folded into a tree shape, with a hole at the top to hang it. 3.9" tall, about 6 g of plastic. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by Ababskia3D

A Christmas teddy bear: a bear in a Santa hat with a ribbon to hang it by, printed in two sizes. 2" or 3.1" tall, about 12 g and 40 g of plastic. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by raven.log

An impossible passthrough wound as a spiral: the helical parts turn through each other and hold, printed in one piece. 2.8" tall, about 29 g of plastic. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by BeninManc

A mini golf hole for the desk: a printed course board with the hole and a rock surround, a club and a ball, all printed flat. 8.7" x 7.2", about 62 g of plastic for the set. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by MoltenPlastic3D

A stackable glasses stand: a fin that the cradles slide onto, so the tower grows to whatever height the collection needs. The cradles come in three widths - 67, 77 and 87 mm - and each holds one pair nose-down by the bridge, which suits slim readers and deep sunglass frames alike. The plate prints a whole tower's worth of parts, 167 by 199 mm laid out as the designer arranges it. Designed by Badger Sound Forge and printed under Creative Commons Attribution-NoDerivatives 4.0 (CC BY-ND 4.0). Shown as a render of the printable model, not a photograph.

Design by Badger Sound Forge

A glasses rack that lives on the wall: six cradles in a row on one 210 mm plate, 22 mm deep, so six pairs hang out of the way of a counter or a bedside table. It prints as one piece with nothing to assemble, and the arms take wire or plastic frames by the bridge. Designed by Matthew and printed under Creative Commons Attribution 4.0 (CC BY 4.0). Shown as a render of the printable model, not a photograph.

Design by Matthew

The Thinker, sitting on a plinth with his chin on his fist and a pair of glasses resting across his knee: 101 by 141 mm and 114 mm tall, printed in one piece as a desk glasses holder. The pose is what does the work - a pair sits in the crook of the arm and the knee, so it is always where it was put. Designed by Abz and printed under Creative Commons Attribution-NoDerivatives 4.0 (CC BY-ND 4.0). Shown as a render of the printable model, not a photograph.

Design by Abz

A modular glasses stand: a round 143 mm base with a spindle, a post that carries two long arms, and a cradle that stacks on the spindle, so two pairs or a shelf-full can be kept upright and out of the way. The arms take frames by the bridge and the base is heavy enough not to tip when one pair comes off. Designed by Rockthered and printed under Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0). Shown as a render of the printable model, not a photograph.

Design by Rockthered

A snowman in two printed pieces: a body with print-in-place joints for the arms, and a head that hangs on its own link so it swings independently as the earring moves. Each is about 30 mm tall, prints flat with no supports, and a pair is two snowmen. Shown as a render of the printable model, not a photograph.

Design by tomo3D

A sleigh and a reindeer, printed twice each: the sleigh has a curled runner and a seat, the reindeer has antlers and a tail, and both are 5.5 mm deep so they hold shape from the side. The plate holds four earrings, a pair of sleighs and a pair of reindeer, and they mix on one ear each way. Shown as a render of the printable model, not a photograph.

Design by tomo3D

Two layered Christmas trees, 33 mm tall, each with a loop at the top for a hook - a few flat layers stacked into a tree, so they read as a tree from the front and none of it is a support to remove. Designed by instintkiller and printed under Creative Commons Attribution 4.0 (CC BY 4.0). The "+ hooks" option arrives with the metal hooks fitted; the plain one is the printed plastic on its own. Shown as a render of the printable model, not a photograph.

Design by instintkiller

Two hexagonal mesh pockets angled into each other, so a pair of shoes sits heel-down without one resting on the other. 220 mm wide, 165 mm tall and 130 mm deep, printed as one piece. Remixed by ThatGuy123568 from jordi_id7's original Shoe organizer on Thingiverse. Shown as a render of the printable model, not a photograph.

Design by ThatGuy123568

A fidget spinner small enough to live in a pocket: one piece, no bearings, no axle to glue, printed in place so the two halves and their weights come off the plate ready to spin. It is a 15-minute print in the designer's own profile, which is why it makes a good giveaway or market-stock item. Printed in a silk filament the spinning face catches the light. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by DragonFusion3D

A snake, printed flat as one piece: 9.8" from nose to tail, no supports anywhere, and off the plate in about an hour by its designer's own estimate. It prints lying on the plate, so the whole thing is one layer stack rather than a tower that can topple. Shown as a render, not a photo.

Design by user_3738174853

Two bands that print as one piece: the finned outer ring's ridge sits in the inner band's groove, so it is locked on but free to spin, with no bearings and nothing to assemble. The groove is a BALL RACE - a circular channel, with the ridge as the same circle held 0.4 mm off it - so the surfaces the two parts face each other across are vertical, which is what lets it print in place and still turn. The ring is 27 mm across and stands 7 mm, and the fins are trapezoids: wide where they join the sleeve, narrow at the tip, so nothing on it is a blade waiting to be knocked. It comes in three sizes, 16.5 mm (US 6), 18.2 mm (US 8) and 19.8 mm (US 10) across the finger hole, all at the same price, and the download is a 3MF with a plate for each, so you can print whichever fits - or all three. Print it with a brim and z-hop switched on: a small ring has a small footprint, and z-hop keeps a moving nozzle clear of what is already printed. The STL on its own is the smallest of the three. The photo is a render of the printable model - real photos of the print go up once the first batch comes off the printer.

A 3x3 clicker pad: nine keys on one printed body, each on its own spring, so the whole thing clicks under a thumb like a tiny keyboard. 2.6" square, printed in one piece with nothing to assemble. Shown as a render, not a photo.

Design by Print3DFamilyFidgets

A pencil that bends: the barrel is printed as a chain of flexing segments, so it folds in your hand and springs straight again, and it still looks like a pencil with a point at one end. 4.8" long, printed in one piece. Shown as a render, not a photo.

Design by TinkerTogether

A T-rex that holds your page: the dinosaur stands on the spine of the book with its legs either side, and the tail curls over the top. It prints flat in one piece, 3.6" tall. Shown as a render, not a photo.

Design by UncleFlappy

An inner cone passes right through an outer one and neither of them comes apart - that is the whole trick, and it prints as a single piece. Roll it in your hands and the two bodies slide past each other, which is the part that keeps fingers busy. Printed in two colours the cones separate in the eye and the pass-through reads as impossible; printed in one it looks like a solid cone until it moves. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by What3d

A hanging books-read counter: a sign with a row of numbers that slide into it, so the count can be moved along as the year goes. It is two plates - the sign with one of each number, and a second sign with the numbers again so the count can pass ten - and either can be bought on its own. Shown as a render, not a photo.

Design by ZHeights

A textured clicker with a body and a set of button caps: the caps press into the body and click under a thumb, and the spare sizes in the set let you choose how stiff it feels. 2.6" long, printed in one go. Shown as a render, not a photo.

Design by ArmadilloFDM

A phone stand that folds out of a keychain: the plate swings up and the phone leans back on it, and folded away it hangs on your keys. Shown as a render, not a photo.

Design by musielovsky

A plain fidget spinner with no ornament on it at all: a body, three arms and a bearing seat in the middle. Five sizes come off the one plate, from a 1.6" one that fits in a pocket up to a 2.7" one, and the plate also carries the grips that go in the bearing seat. Pick the size you want - each is printed as one piece. Shown as a render, not a photo.

Design by MakerShed

A cactus that clicks: the body snaps onto a keyboard switch, so the whole cactus is the button and the click comes from the switch inside it. Four designs, sold one at a time - pick the cactus you want, about 1.3" tall, and it prints in two pieces that snap together without glue. Shown as a render, not a photo.

Design by UKSTL