tigercait
Tiller
When I donate to Professor Snail's collection on Ginger Island, the bone I'm donating is returned to my inventory. It still shows in the museum collection and I get credit for the donation, but I still have the item and can sell it or use it in a bine mill (or even donate it again, for leg bones and snake spines). It is returned to my inventory, not just left there, because it moves to the first open inventory slot if it wasn't in a stack (if it is stacked, the stack count just stays the same). This is version 1.6.14.7.