I collect postcards, specifically those that depict fossils, and especially dinosaurs. I suppose I started doing this through a love of pop culture, poster art, americana, and having souvenirs of museums I have visited. I also use a lot of postcards in my scientific correspondence.
Aside from anything else, I like to receive postcards, and figure that other people probably do too. So... If you feel like sending me a dinosaur postcard my address is:
I'll send you one back!