My favorite rack is anything that gives me a horizontal bar, slightly higher than handlebars. I lift my front wheel and put my shifters over the bar (this is a road bike I'm talking about). Then I lock it up with a cable lock (I don't make any U-lock necessary visits -- lucky me).

This way I don't have to lean my nice bike against any vulgar, paint-scraping steel.

That being said, I still think the art racks are the way to go. A college campus is a reasonable hip community (even the land-grant ag schools). They'll figure it out, or word will get out. You can't keep a secret on a college campus!