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

A jeep-bodied duck, cap and all - the joke that gets left on other people's cars, printed in one piece.

Design by 5er

A star that opens and closes as you spin it: a print-in-place kinetic fidget with no assembly and no supports, so it comes off the plate ready to twist. Spinning it expands the arms from a closed cone into an open fan and back, which is the part that keeps hands busy, and it looks good parked on a desk either way. Best in a silk or colour-changing filament, which is what the designer recommends.

Design by Big-D-SyneS

A dragon that prints in one piece with every plate of its body already jointed, so it coils and straightens straight off the bed - no supports, no assembly, and no loose parts. The spikes run the length of its back and read as armour when it is posed on a shelf. Three sizes: Small is 116 mm nose to tail, Medium is 140 mm and fits an A1 mini, and Large is 223 mm - the one that needs a full-size bed. The designer asks that anyone selling prints credit them and link the model page, which this listing does.

Design by CLUCKWORKS 3D

A snake printed in one piece with its body jointed along the whole of its length, so it coils and straightens as you play with it and holds whatever shape you leave it in. The scales run along its back and give it something to grip with. The designer prints it at 0.16 mm layers or finer at 100% scale, which is what keeps the joints free - print it coarser and it will come out stiff.

Design by Bash Studio 3D

A cube of eight hinged blocks that folds in on itself: twist it one way and it turns inside out, fold it the other and it closes back into a cube, which is the whole trick and the reason one stays on a desk. It prints as a single piece with its hinges already in place, in two sizes, and needs no supports or assembly.

Design by Print3DFamily

A baby dragon 3.9" long, printed in one piece. Two versions come off the plate: the flexi one is a chain of segments that curls and straightens in your hand, and the solid one is a single rigid body with the same shape. Pick which you want.

Design by Quantrex

A starfish printed as a chain of flexing segments, with five arms that trail and curl so it drapes over your hand. 4.5" across, printed in one piece with no supports.

Design by mieldeprot

An articulated dragonfly: the body and each wing are cut into flat segments joined by print-in-place hinges, so it flexes in the hand and settles back flat when you set it down. It prints as one piece with no supports, 4" across by 2.7".

Design by Tybob24

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 tiny dragon printed as a chain of flexing segments, detailed all down its back and small enough to sit in two fingers. 3.0" long and only a few grams of plastic, printed in one piece.

Design by CrissyCat

A one-piece toy bow with a springy arrow that launches when you pull it back. Prints as a single piece with no assembly - ready to play with straight off the plate.

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

An articulated gecko 7.7" long, printed in one piece with every segment already moving - it curls over a shelf edge, drapes across a monitor and stays where you leave it. The plate also carries its little tongue.

Design by KrisCyber

A lucky toad, printed in one piece with no supports, about 1.9" across and 2" tall with its little belly. Four come at the bulk rate.

Design by Ake Studio

A slug that ripples: the body is a chain of segments under a soft brim, so it flows through your fingers and settles into a curl. About 3.0" curled, printed in one piece with no supports. Enlarged and remixed by yusuffles from matveymoo's "Curled up Friendly Slug", and sold under the same share-alike licence.

Design by yusuffles

A crocodile printed as a chain of flexing segments - ridged back, four stubby legs and a tail that swings - so it wriggles and curls in your hand. 4.0" long, printed in one piece.

Design by ThePrintDrawer

A monster printed as a chain of flexing segments - horns, a ridge of spines down its back and a tail that curls - so it stands up, slumps and wriggles. 3.9" tall, printed in one piece with no supports, in one colour or three.

Design by TinkerLink

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 skeleton with print-in-place hinges at the shoulders, hips and knees, so the arms and legs swing as it moves and it settles back into a dangle when it stops. It prints as one piece with no supports and no assembly, 44 mm long, with a hole through the skull for a hook. Order a pair and you get two skeletons. The "+ hooks" option arrives with the metal hooks fitted; the plain one is the printed plastic on its own.

Design by tomo3D

A coffee cup for a keyring, complete with a lid and a sleeve, small enough to disappear in a pocket and clear enough in shape to read at a glance. 0.8" across and printed in one piece. Shown as a render, not a photo.

Design by Tuscarora Tech

An eight-legged octopus printed in one piece with its legs already articulated: no supports, no assembly, and it wriggles the moment it comes off the plate. Small enough for a desk or a pocket, and the designer's own profile runs it at 0.16 mm layers, two walls and 8% infill. It takes a two-colour silk filament especially well, which is how the designer's sample is printed. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by Timmy_1293

Six dog charms with a bit more detail in them - a bone, a ball and a few breeds, each cut in relief. Pick the one you want: every charm has a hole at the top for a keyring or a chain, prints flat, and measures about 2" by 2.4". Shown as a render, not a photo.

Design by dominator334

An elephant charm in flat relief, trunk curled, with a hole at the top for a keyring or a chain. Shown as a render, not a photo.

Design by dominator334

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 cat curled into a charm, cut as a flat silhouette with a hole at the top for a keyring or a chain. Shown as a render, not a photo.

Design by dominator334

A DAD heart gyro fidget: a heart with DAD cut through it, mounted so it spins in the frame when you flick it. 1.8" by 2.2", printed in one piece with the pin already in place. Shown as a render, not a photo.

Design by LangHjornArt

A tiny dino for a keyring, all of an inch tall, printed flat in one piece. Shown as a render, not a photo.

Design by SG3D

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

Love hearts, one letter at a time: A to M, each a heart-shaped charm with the letter cut into it, so a name or a message is spelled out a charm at a time. About 1.6" by 1.6" each, with a hole at the top for a keyring or a chain. Shown as a render, not a photo.

Design by dominator334

A small articulated dragon: body and tail cut into segments joined by print-in-place hinges, so it curls through your fingers. Shown as a render, not a photo.

Design by BashStudio3D

Twenty-six dog charms, each cut with a different dog in relief so it reads at a glance on a keyring or a necklace - the designer's three sets, in one listing. Pick the dog you want: every one has a hole at the top for the ring or the chain, prints flat with no supports, and measures about 1.4" by 2.4". Four or more of any mix come at the bulk rate. Shown as a render, not a photo.

Design by dominator334

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

Sixteen ring gauges from 15.4 mm to 27.6 mm across, printed flat on one plate so you can measure a finger properly instead of guessing. The whole set is about 6 g of plastic - print it once and keep it in a drawer. Shown as a render, not a photo.

Design by porkac

A rubber-band fly swatter gun: stretch the band, aim and let go, and it fires the swatter head across the room. Printed flat in five parts with no supports, about 5.2" long. Remixed by 123木头人 from uhltimate's original Fly Swatter Gun. Shown as a render, not a photo.

Design by 123木头人

A little snake printed in one piece with no AMS and no supports, coiled so it sits up on its own tail. 2.5" long and about 2 g of plastic - a desk pet, or a whole plate of them for a market stall. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by AmandaRoos

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

An orca printed in place: the body and its fins come off the plate as one piece that already moves. 2.4" long, with the eye patch and the white belly reading in black and white filament. Shown as a render, not a photo.

Design by slavko

A dolphin that looks knitted and bends like a chain - stitches down the back, a fin and a tail that flex. 2.5" long, printed in one piece with a hole through the tail for a keyring. The picture is a render of the printable model - real photographs of the print go up once the first one is made.

Design by OrangeSs

A two-prong hair pin that holds a bun without a single elastic - the forks flex, so it grips and then lets go. Two lengths: 4.5" for fine or shoulder-length hair and 5.9" for thick or long. Printed flat in one piece, in one colour or two. Shown as a render, not a photo.

Design by riverbed

A starfish printed in place, with five arms that already move on the plate and a face on top. 2.2" across, printed as one piece with no supports and nothing to assemble. Shown as a render, not a photo.

Design by slavko

The classic folded awareness ribbon with a keyring loop at the top, printed flat so the fold reads cleanly on both faces. It is 2.5" long by 1.4" wide and prints in whatever colour you choose. Shown as a render, not a photo.

Design by Miss3DP

A gecko printed as a chain of articulated segments, with its toes splayed and its tail trailing, so it drapes over a shelf edge and stays there. 5.1" from nose to tail, printed in one piece with no supports and nothing to assemble. Shown as a render, not a photo.

Design by Timmy_1293

A dinosaur that looks knitted rather than moulded - cable ribs down its back, a stitched belly and little knitted feet - printed as one piece. 3.0" long, and the stitch texture is the print itself, not a pattern painted on. Shown as a render, not a photo.

Design by hjs19

A fox printed as a chain of flexing segments - pointed ears, a bushy tail and a loop through the tail for a keyring - so it curls in a pocket and springs back. 4.2" nose to tail, printed in one piece. Shown as a render, not a photo.

Design by OrangeSs

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 jumping spider, joints and all, with a loop through the top for a keyring - eight legs that fold under it and a body that moves when you hold the ring. 2.4" across, printed in one piece. Shown as a render, not a photo.

Design by Daann_ii