◆ Chocolate
Chocolate skull tray mold
Twelve chocolate skulls per pour. A food-safe silicone tray you make yourself, eye sockets and teeth included.
◆ Chocolate
Twelve chocolate skulls per pour. A food-safe silicone tray you make yourself, eye sockets and teeth included.
A tray of twelve chocolate skulls, each 32 x 41 mm and 12 mm deep: a domed cranium, deep eye sockets, a heart-shaped nose and two rows of teeth. Each takes about 10 ml of chocolate, around 13 g solid, a good size for a party bag or the top of a cupcake.
Made with our tray mold generator in its flexible silicone tray mode: print the caster, pour a food-safe platinum silicone into it and peel out a flexible twelve-skull tray. The printed caster never touches food, only the silicone does, and the sockets and teeth release far more cleanly from silicone than from anything rigid.
A Halloween mold that works all year for candy, wax melts, soap or resin, but keep a tray you use for food for food only. The zip carries the printed caster exactly as the tool exported it, one skull on its own as an STL, the master uploaded to the tool, and a print and pour sheet with the silicone figure the tool measured.
Shown as a 3D render of the printed caster with three chocolate skulls in front, not a photo.
Print the caster as exported, open side up. It is one part, so there are no seams to seal. No supports.
Set it on a level surface. Mix 286 ml of silicone in one batch and pour it into one corner in a thin stream, letting it flow round the raised shapes until it is level with the rim.
Tap the caster on the table for a minute to bring the bubbles up, then let the silicone cure for as long as its datasheet says.
Peel the cured silicone out of the caster. That silicone is your tray, and the caster is ready for another one.
Fill each skull with tempered chocolate, tap the tray on the counter to lift the air out of the eye sockets, scrape the backs flat and let it set in a cool room before a short spell in the fridge.
Flex the tray and press gently on the back of each cavity to pop the skulls out.
Print details
| Cast material | Chocolate |
|---|---|
| Printed parts | 1 |
| Size (W x D x H) | 154 x 143 x 21 mm |
| Print bed needed | 155 x 143 mm, 21 mm tall |
| Filament | ~133 g |
| Layer height | 0.2 mm |
| Infill | 15% |
| Supports | Not needed |
| Download | ZIP: printed caster (STL) + one chocolate skull (STL) + tool master (STL) + print and pour sheet |
| Added | 2026-09-26 |
Pro early access until October 26, 2026, then free with any account.
Like it or post your print on Thingiverse
Make your own tray mold →Made with the free Tray mold generator. Upload your own model and get the same kind of mold built around it, in your browser.
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.
New to casting? Read the ice cube tray mold guide.
Temper the chocolate, or use candy melts, which set glossy without tempering. Fill the tray at room temperature, never straight from the freezer, and let the skulls set slowly before a short chill. Silicone gives a softer shine than polycarbonate, so a light buff with a cotton glove helps.
Brush a thin layer of melted dark chocolate over the raised eye, nose and teeth shapes in the empty tray and let it set, then fill the skulls with white chocolate. The dark layer lines the sockets, so the skulls come out white with dark eyes and a dark grin.
The print never touches the food: it is only the caster the silicone cures in. What touches the chocolate is the silicone, so use a platinum silicone sold as food safe, follow its post-cure instructions and wash the tray before the first use. Do not use tin-cure silicone for food.
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