I collect buttons/pins. Some aren't really applicable to me anymore (like the Jesus one), but I like how they show my life a bit. Most of them were given or found somewhere. My favorite was the Mitt Romney pin I was given for Christmas, because I hate him so much.

I used to collect porcelain dolls until I got old enough to realize they're smurfing creepy, and got rid of them. I probably had about 60 of them.