I've got an old white cross that my parents gave me when I was a baby hanging from the ceiling directly over (riding, you could say) a butterfly model from a vacation a year ago. I've got the trophy corner on one side, with a ceramic snake slithering among there (made a month or so ago with some friends) and a poster for a school project that another friend did in 8th grade. On a shelf I've got a model (sketch?) figurine, some old bead things, a bunch of cards, a Homecoming bid, some clay school models, some mugs, a dipping bird, and two little glass bubbles.
I've got letters from a friend on the walls, as well as the graduation program from my 8th grade, a picture of a school trip to DC, a wolf poster, and an Einstein poster.
I've also got a set of four animals around my room that each have a rubber frog to accompany them, and a small obelisk next to my bed with its own frog. The ends (fin on a dolphin and tail on an eagle) keep breaking, though. :P
Of course, there's a bunch of other even smaller things, but then the list just gets long and even more boring. :)