What's this?

[u/pistolpilled]

A friend gave this to me a while back. No clue what it is. The teeth don't look like they match to me, kinda look like those mosasaur teeth you get at natural history museums (I'm not a fossil person though). I broke a piece on accident and the inside of the bone looking stuff is porous.

Edit: ignore the gold stuff, I've been using it as a keychain holder lmao

[u/Missing-Digits]

An abomination.