A while ago, I made a set of natural shells and then made a silicone mold of them. I used that mold to make a bunch of resin shells for a shell game workshop. One of those resin shells recently got 3d scanned and I’ve started printing them!
These are a great beginner set or set to throw in your backpack to carry around and not beat up a nicer set.
You can find or more or order a set at:
https://www.magicshow.tips/shell-game/
-Louie