Ooh I have snakes too! The one I got down just isn't on the shelf yet because I was playing with it... (I have the original 80s packaging for one of them and amusingly it's actually marketed as a "Fidget With-it"

The tower sounds really interesting, a friend of mine has one that sounds kind of like that (which I solved one year at her Christmas party because what else would you do at a party amirite) that I haven't been able to find on any of the websites I used to find the names of mine.

(And of course people collect these! There's a forum. The people on there make my collection seem very small, which is doing a good job helping me resist signing up on the forum.)