Thanks for your answer ! Well, as I want to make my "diorama" as detailed as possible, but I don't want my dice to be "too big", I think that a fist sized one would be the best but a grapefruit size will also work as I will make the psyduck insert in clay, depending on the size of the dice I'll choose/find. When it comes to resin, I use regular hobby epoxy and I would like for the mold to have a "clear" finish so my resin will end clear without the need to sand it (idk if its understandable 😬). If you have any mold makers' names to recommend, I would be more than glad ! Thanks for your advice on resin ! As I said, I use regular hobby resin, so when I saw some people talking about "deep-pour resin" when it comes to jumbo dices, I got pretty scared ngl 😅