So @TimeoftheYear made the suggestion quite a while back for a cursed chest that was, essentially, a hermit crab.
Decided to finally draw the suggestion, which I think is a fantastic idea!
Imagine: You put the chest down and when you let your guard down, the thing flips open and tries to crawl to the main deck and jump into the sea. Would be fun when the crew panics when they either realise the chest is missing or hear the clickclickclickclick from the little legs scrambling to freedom.

