Everyone usually collects things. I tend to collect any thing panda or raven themed. Or even crystals.
Snoopy stuffed animals. Last approximate count, I have over 80.
Skulls/bones (and art made with them), taxidermy, and other oddities
I have a love for masks, so I've found myself with a nice little collection over the years. Porcelain, leather picked up from the Ren Faire, plastic, lace. If it's pretty and I think it looks attractive, I'll get it and hang it on my wall.