A baby bodysuit, the onesie, with a round neckline, short sleeves and a narrow snap flap at the bottom. It is the most requested baby shower cookie shape, and it takes a name, a slogan or a pattern well. Good for baby showers, gender reveals and birth announcements. The cookie comes out about 85 by 83 mm.
Made with our free cookie cutter generator, not modelled by hand: we drew the silhouette, uploaded it to the tool and set the cutter size to 85 mm. The STL in the zip is exactly what the tool gives you: a 0.8 mm blade, 14 mm tall, with a 4 mm rim to press on, exported rim down so it prints without supports. The silhouette is in the zip too, as an SVG, so you can make it bigger, smaller or add a matching stamp.
A row of three small dots at the bottom of the flap, piped in white, reads instantly as the snaps. It is the one detail that makes it a onesie and not a T-shirt.
Shown as a 3D render of the printed cutter and two cookies in its shape, not a photo.
What you need
- Rolled cookie dough that holds its shape: sugar cookie or gingerbread, with little or no baking powder
- A rolling pin, and two 5 to 6 mm guides for an even thickness
- Flour for dipping the cutter, and baking paper
- About 7 g of PLA or PETG, ideally a food-contact filament
How to use it
- Print the cutter as exported: rim flat on the bed, blade pointing up, no supports.
- Wash it in warm soapy water before the first use.
- Roll the chilled dough 5 to 6 mm thick between two sheets of baking paper.
- Dip the blade in flour, press straight down with your palm on the rim, and lift.
- Chill the cut cookies for ten minutes, then bake.
- Wash the cutter by hand straight after use and let it dry. PLA softens in a dishwasher.
| Works with | Cookie dough |
|---|---|
| Total print time | 41 min |
| Printed parts | 1 |
| Size (W x D x H) | 93 x 91 x 14 mm |
| Filament | ~7 g |
| Layer height | 0.2 mm |
| Infill | 15% |
| Supports | Not needed |
| Printer | Sliced with PrusaSlicer 2.7.2: 0.4 mm nozzle, 0.2 mm layers, 3 perimeters, 15% infill, MK3-class speeds. Rim flat on the bed, no supports. PLA or PETG. |
| Download | ZIP: cutter (STL) + print and food-contact sheet + silhouette (SVG) + README |
| Added | 2026-09-24 |
Pro early access until October 24, 2026, then free with any account.
Free for personal use. Selling the pieces you cast needs a commercial licence (Pro or Founder); passing on the file itself is not permitted on any plan. Full terms.
Made with the free cutter generator. Upload your own model and get the same kind of mold built around it, in your browser.
New to casting? Read the cutter guide.
