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

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

A plump bee that clips onto the top of a straw, wings raised and its stripes cut deep enough to read across a table. It suits the 10 mm Stanley straws, is 1.6" by 1.5", and prints in one piece with no supports.

Design by Morganja

A bowl for rinsing rice: the water swirls through the grain and pours off the side while the rice stays put, so you stop losing half of it down the sink. Two sizes - 6.9" across and a smaller 4.8" - each printed in one piece, with the drain holes and the pouring lip part of the bowl.

Design by ValeraPerinski

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

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 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 lid that snaps onto a standard can and seals it up again between sips, and doubles as an opener when you slip it over the tab and tilt. It is the wider, support-free version, and it fits both the slim and the fat cans the designer built it around - European 202 cans, so if yours is a different can it is worth a quick measure. Light sanding on the slots is the only finishing it asks for.

Design by MakerShed

A dog's head that sits on top of a straw, ears up and nose forward.

Design by Morganja

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 Jeep grille that rides on top of a straw, seven slots and all.

Design by Morganja

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.

Four dinosaur cookie cutters with matching stamp inserts - press the stamp for the details, cut the outline, bake. Each cutter is about 3" across, and the set is four different animals.

Design by Merilno3D

A clip-on egg separator: crack an egg into the channel and the white runs through while the yolk stays put. 3.6" long, printed in one piece, and it sits on the rim of a cup or a bowl.

Design by user_4069524941

A bookmark of a book with a coffee cup resting on the stack - flat, 3.7" tall, and thin enough that it does not mark the pages. Printed in one piece in about a minute. Shown as a render, not a photo.

Design by giessener

A flat floral bookmark: one thin spray of three openwork blossoms and leaves that lies between the pages and reads against the paper, marking the page without thickening the book. 5.9 x 4.4" overall and 1.6 mm thin, printed flat in one piece in a few minutes. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by Rankhispano

A pencil cup wrapped in overlapping scales, so it reads as a little pinecone on the desk while holding a fistful of coloured pencils. 3.3" across and 3.1" 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 impresionao

A desk golf set in eleven printed pieces: a green you can rearrange piece by piece, a ball, a club and the furniture around it. About 3" a piece and 115 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 SakiSale

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 hook that hangs over the top of a door - no screws, no drilling, nothing to fix to the wall. 2.7" wide and 4.3" tall, about 13 g of plastic. Shown as a render of the printable model, not a photograph.

Design by blunt

Four plectrum shapes, two of each, printed flat as one sheet: a teardrop, a jazz point, a wide triangle and a rounded standard, at 1.0 and 1.4 mm so a player can find the thickness they like without buying four packs. Each pick is about 34 mm long and the texture on the back of the thicker ones keeps a sweaty thumb where it belongs. Designed by SF3DPrints 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 SF3DPrints

A flat organizer that divides a kitchen drawer into compartments - it lies 2 mm deep, so it adds dividers without eating the depth of the drawer. 9.6" across, printed flat in one piece. Shown as a render, not a photo.

Design by Nix3D

A practice mute for trombone, printed in three parts: the long tapered body that goes down into the bell, the flared cup that caps it, and the small collar that keeps the two together. 250 mm long and 193 mm across the cup, so it takes a full-size bell. The cup is what does the muting, so the horn can be played in an apartment without the neighbours learning the set list. Designed by 烤肉大师 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 烤肉大师

A pick holder with four feet that stands on an amp or a desk: slanted slots take plectrums by the tip so they can be pulled out one at a time, and the block is 90 mm long, 28 mm wide and 12 mm tall. The slots are cut at an angle, which is what stops a pick sliding back down into the holder. Designed by gareth7562 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 gareth7562

Four wedding cutters with stamp inserts - the ring, the cake slice and two more - for biscuits at an engagement or a hen do. About 3" across each, and the same set cuts playdough for the small guests. Shown as a render, not a photo.

Design by Merilno3D

A rail that a CD jewel case stands in, ribbed along its length so the case leans back instead of sliding forward, on four short feet that keep the disc off the shelf. 149 mm wide and 30 mm tall - the width of a standard case, with a little room either side. Designed by ToToKia and printed under Creative Commons Public Domain. Shown as a render of the printable model, not a photograph.

Design by ToToKia

A plate of music notes cut flat at 3 mm: single quavers, beamed pairs, a dotted note and the odd small rest, from 25 mm up to 67 mm long, so a wall, a noticeboard or the front of a piano can be dressed with them. They print lying down, which means no supports and a clean face straight off the plate. Designed by EcneNomma 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 EcneNomma

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 plectrum printed flat at half a millimetre, 27 mm tall and 24 mm across, with the designer's design across the face - the pun in the name is the whole idea. Thin picks bend more than thick ones, so this is the one for strumming rather than for shredding. Designed by marshal.meacham 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 marshal.meacham

A rest for a wooden spoon: the bowl sits in the cradle and the handle lies over the rim, so the drips land in the holder instead of the hob. 4.7" across, printed in one piece. Shown as a render, not a photo.

Design by Jirka108

Four Halloween cutters - pumpkin, ghost, bat and the like - about 3" across each, printed with a cutting rim deep enough for biscuit dough or Play-Doh. One plate prints the set. Shown as a render, not a photo.

Design by Creaitivity Studio

An upright organizer for the utensils that live on the counter: compartments of different heights, a flat back to go against a wall, and a base wide enough that a ladle does not tip it. 8" long, printed in one piece. Shown as a render, not a photo.

Design by lunatiic

A capo in two printed parts: a jaw that sits across the strings and the lever that clamps it down, 92 mm wide so it spans a standard six-string fretboard. It goes on the neck above the fret and holds the strings at the new position, which is what lets one shape be played in any key. Designed by Kevdev, a remix of the Guitar Capo by HarleyPrints, 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 Kevdev

A holder that stands cutlery up in a drawer or on a counter, with slots for forks, knives and spoons and a low front so you can see what you are reaching for. 5.9" long, printed in one piece. Shown as a render, not a photo.

Design by Alex

A kitchen roll holder with a weighted base: the disc takes sand or coins, so the roll stays put while you pull one sheet off with one hand. 9.1" tall, printed as a base and a post. Shown as a render, not a photo.

Design by MicahW3D

A fridge egg dispenser: eggs roll down a ramp and out of the front one at a time, so the oldest is always the next to come out. 9.7" long and holds a dozen, printed in three pieces - the ramp, the body and the front cup - with no supports. Shown as a render, not a photo.

Design by specialman

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

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 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 paw that rides on top of a straw: the straw passes through the middle of it, the paw sits above the lid, and the raised pad and four toes catch the light as the cup moves. It is made for the 10 mm Stanley straws, 3.5" tall by 1.6" across, and it prints in one piece. Shown as a render, not a photo.

Design by Morganja

A pair of lips that sits on top of a straw: the straw passes through the middle and the lips ride above the lid, catching the light as the cup moves. It suits the 10 mm Stanley straws, is 3.9" tall by 2.2" across, and prints in one piece. Shown as a render, not a photo.

Design by Morganja

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 headband in a soft wave, 157 mm across and printed in PETG the way its designer publishes it - PETG bends where PLA would snap, and a headband is a part that gets flexed every time it is worn. Designed by Elyse_ and released as Creative Commons Public Domain (CC0 1.0), so the prints may be sold with no condition attached. Shown as a render of the printable model, not a photograph.

Design by Elyse_

A headband with a horn and two ears, 205 mm across and 6 mm thick, so it sits flat on the head and prints in one piece on the plate with nothing to glue. The band is a loop rather than a rigid arc, so it grips a child's head and an adult's. Designed by Jakub Lattenberg 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 Jakub Lattenberg

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

Eight bunny cookie cutters, each with a stamp insert - press the face and ears, cut the outline, bake. About 3" tall each, and the same set cuts playdough, which is what the designer made it for. Shown as a render, not a photo.

Design by Merilno3D

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

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