Unconventional stimming/fidget toys?

This is my bladeless balisong/butterfly knife. This is usually used by people who like to do tricks with butterfly knives or practice escrima. Flicking it around is so much fun, and the clicks are so satisfying. It looks really cool too. I like to call it my "danger fidget". A technically legal version of a weapon seems like it's on brand for evil autism, in my opinion. Does anybody have anything out of the ordinary that they like to mess around with?

Warning: the video does have some pretty loud and sudden clicking sounds, so I recommend turning it down your volume.