I made some video game themed Xmas ornaments out of air dry clay as a gift… they turned out fine, but I didn’t realize the paint I used on them didn’t do a good enough job sealing them up. They should have been resin-dipped. In places the paint cracked, moisture got in, and over a couple years expanded the paper-based clay through the cracks so they look super creepy now. Very disappointing.

Mistakes are a great way to learn, though.