Not all casting media are food-safe, which is why you need to take extra care in choosing your mold-making resin if the treats you make are intended to be gobbled up by others. Smooth-on suggests Equinox 38 for any food-grade mold-making and the results are intricate as they are impressive. A tutorial on their site gives the run-down on how it’s done.

A support form is made for the piece to be molded (they used a coin) and the resin is mixed to be impressed.

Chocolate is poured in and left to cool, before being devoured by the nearest lucky person. As you can see, the quality of the mold is excellent.

This gives you plenty of time to cast some Halloween treats.  Smooth-on also suggests making molds of:

custom shaped hard candy, chocolate, gummi bears, gelatin, marzipan, cheese, nougat, poured sugar, gum paste, shaped rice, bento box shaped food, royal icing, pastillage, ice cream, pate, edible cake decorations, dessert motifs, ice, fondant, butter and more!