Keep bogus books and pocket your suckers', uh members', extra dough. Your Friends Invite your friends out to a movie. When you get there, tell them to give you the money so you can go and buy the tickets. Gets 'em every time. Make sure to wear an orange vest that day.
Place cones across the entire front row of the social sciences parking lot.
Come back in six hours and set yourself up in a chair under an umbrella and sell the spots to unwitting students. Make it look good. Frame it and make up a story about how you paid big bucks for it on eBay. They'll eat it up. Star in your own infomercial, selling the worthless piece of steel as a sophisticated, high tech exercise machine.