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

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.

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.

An angled, ribbed plant pot for a windowsill, with a drip tray that stands it clear of its own water. The pot tapers up from a 45-degree base and drops into a tray with a hollow reservoir, so what drains out sits below the base instead of wicking back up into the soil, and the tray lifts off to empty. The floor has a 2.5 mm centre hole, a ring of six, and a ring of twelve at the outer edge. Forty-eight round bead ribs run up the angle and on to the rim, so the pot has something to grip and looks alive in daylight. Three sizes, each one as wide as it is tall: 2.5"x2.5", 3.25"x3.25" and 5"x5". It prints as two pieces, no supports and no assembly, in PLA - which is happy on an indoor sill, while a window that bakes in direct sun or a spot outside wants PETG. The last picture is a render of the printable model; the others are photographs of the printed pot.

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

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 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 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 japandi vase with a rifted surface: a faceted body that catches the light along its ridges and narrows to the rim. Shown as a render, not a photo.

Design by DueMakers

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

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 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 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

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 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

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 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 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

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 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 reading guide that frames one line at a time so the page cannot swim: 5.1" x 1.4", 1.4 mm thick, light enough to leave in a book. Kept for kids learning to read, and for anyone whose attention slides down a full page. Shown as a render of the printable model, not a photograph.

Design by fgiancarelli

A set of fifteen Archimedean solids - the truncated and snub forms of the five platonic shapes - each 24 to 33 mm across and printed as one plate. A desk set for a maths classroom or a geometry shelf. Shown as a render of the printable model, not a photograph.

Design by mikan

The 2 to 9 times tables on one flat plate, 5" x 3.6" and 1.6 mm thick - a card that lives in a pencil case rather than on a screen. Shown as a render of the printable model, not a photograph.

Design by kot1199

A volcano model 5.9" across and 3.1" tall, printed as one piece - a desk piece, or the model for a school project on volcanoes. Shown as a render of the printable model, not a photograph.

Design by euro100xx

Two strands twisted around each other into a pen stand: a double helix about 22 cm tall on a 14 cm square base, printed in one piece with nothing to assemble. Pens drop into the gaps between the rungs and lean out along the twist, so a handful of them fan apart instead of clumping together in a cup - and the base is wide enough that a full stand does not tip. Empty, it is a desk ornament rather than a mug with pens in it, which is most of what a pen holder does all day. Printed in PLA at a 0.2 mm layer, about 34 g of plastic. Designed by AndreUser and printed under Creative Commons Attribution 4.0 (CC BY 4.0). The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by AndreUser

A set of gear examples for teaching - the gears and the pins that hold them, printed as one plate, each gear 80 mm across. Shown as a render of the printable model, not a photograph.

Design by osamutake

A modular hydroponic tower printed as twelve parts: a base, the column that stacks, five growing cups and the plates that close the sides. The column is 220 mm across and 128 mm tall, each cup 55 mm. The modules come apart, so a tower can be built one section at a time and taken down again. Shown as a render of the printable model, not a photograph.

Design by user_139533078

A three-part seed germinator - base, insert and lid - 4.5" x 5.5" and 20 mm deep, printed in whatever colour you pick. Shown as a render of the printable model, not a photograph.

Design by 3dmonios

A short sword bookmark with its own sheath: the blade marks your page and the scabbard clips back over it. 5.7" long, printed flat, the two pieces together weighing about 8 g. Shown as a render of the printable model, not a photograph.

Design by Forged in Filament

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. 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

An impossible passthrough in pentagon form: the inner shape turns through the outer one and cannot come apart. 2.8" tall, about 31 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 vortex vase whose wall spirals in one continuous swirl from base to off-centre mouth, so it looks like it is still turning. 5.4" tall over a 3" body, printed in one piece. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by oakliz27

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 pen holder clad in raised dragon scales, hexagonal all the way round, with a smooth inner cup for pens, pencils or brushes. 3.1" across and 4" tall, printed in one piece. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by 3DWoosh

A bookmark shaped like an alligator, with the jaw clipping over the page and the body lying in the gutter - so it marks the page and the line at once. 3.9" long, printed as a body and a jaw. Shown as a render, not a photo.

Design by 3dprinting

A little hand that clips onto the page and points at the exact line you stopped on - so a bookmark marks where you are, not just which page. 2.8" long, printed flat with the fingers already free. Shown as a render, not a photo.

Design by helder.bernardo

A lidded storage box for microscope slides: the box and its lid print as two pieces and close over the slides. 3.4" x 6.9" x 1.3" overall. Shown as a render of the printable model, not a photograph.

Design by Asky

A top that keeps going: a heavy rim, a fine point and a printed handle to spin it between finger and thumb. 2.1" across, about 41 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 happybirthday

A fidget web: a lattice of hinged segments that folds through itself and comes back again, printed as one piece with nothing to assemble. 3.7" across, about 28 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 bee feeder for the garden: a shallow dish with a landing grid so bees can drink without drowning in it. Fill it with sugar water and hang it or set it among the flowers. The picture is a render of the printable model, not a photograph of a finished print.

Design by DanyP86

A cone that passes through its own core and keeps going - a puzzle you can hold, printed in one piece with no assembly. 2.8" tall, about 19 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 flat page marker with a fox carved in raised relief across its face - it slides over the page and the design reads against the paper. 9.4" long and 2.7 mm thin, printed flat in one piece. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by shadow.lune

A guide that keeps a garden hose off the flowers: the hose runs through the roller and the stake holds it where you want it, so dragging it round a corner stops flattening the bed. 4.7" tall, printed as a body and a stake. Shown as a render, not a photo.

Design by Tulmuz

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. Shown as a render, not a photo.

Design by astavr

A napkin holder with a voronoi lattice for walls - it holds a stack of napkins and looks like something grown rather than built. 5.1" long, printed in one piece. Shown as a render, not a photo.

Design by IvanChamberlain

Four miniature garden tools - shovel, spade, pitchfork and rake - about 2.8" long, with the hafts and heads modelled properly rather than blobs. A set for a dollhouse garden, a terrarium or a plant shelf. Shown as a render, not a photo.

Design by Gekon3D

A small hook that sticks to a desk or a shelf edge with tape or a screw, for keys, headphones or a cable. 2.6" wide, printed in one piece with a flat back that sits flush. Shown as a render, not a photo.

Design by schiko

Six coasters shaped like leaves, 70 mm across and 3 mm thick, each with a different vein pattern. Printed flat with no supports, and thin enough to stack in a drawer. Shown as a render, not a photo.

Design by jdormer9

A B2 in flying-wing form that sits on top of a joystick - the shape slots over the stem and pegs in, so it turns with the stick. 5.5" across the wings, printed in one piece plus two pegs. Shown as a render, not a photo.

Design by DeanPrinting