Help!

The cover of my comic novel is being prepared, and I need some help. The concept is a dormroom door. Here's my question: what is the funniest stuff that you have seen on a dorm door? Vandalized pictures, flyers, stuff written on white boards--what? My editor said she once saw a piece of pizza stuck on one.

Current students/recent grads, now's your time to show how thoroughly degenerate your university is. Thoughts? Katie, Jack, Mollie, Larry: you must reply or face immediate disinheritance. (My football cards are probably worth something.)