what would be nice, but I think unachievable, would be to get a list of Asylumites who will definitely be there and list them on the back of a black tee. Maybe on the front, somewhere small, like right pocket area, just have "Allanois '07" and underneath that Allakhazam.com. Or you could put the website name under the list of Asylumites on the back.
But its gotta be a cute black tee. Otherwise Im just going to wear my Happy Bunny Psycho tee.