awww me too! I had this vast collection of fossils/arrowheads/pottery as a kid and I've moved so many times that I've lost the most of my stuff!!
Back in my home town of Santa Fe, NM there was all kinds of things to be found.
I think my prize piece was a fossilized cluster of clams. The cluster was really defined and very beautiful!
I also have a few chunks of fossilized wood around the house.
Just whenever I see something interesting, I tend to pick it up and bring it home. Even if it's just a pretty rock. LOL!