I think I've received my weirdest present ever. my psyco sister-in-law gave me 2 spiney puffer fish. not for a tank but 2 puffed up dried out fish like you see in a bad seafood restaurant.
the bigger 1 is about 7" across with spines about 1" long and the smaller 1 is about 4" across with spines about 1/2". they'll punch a hole in you if you aren't careful. they aren't mounted on a stand or board. they just are. I can't see putting them in my bookcases and I don't dislike anyone else enough to regift them.
I guess I could hang the smaller one in a net from my rearview mirror. If I get into a wreck I can just see the cop filling out the report and trying to explain why the driver had a fish stuck to his forehead.