Fake spills!

Yeah, this is probably... not much of a trick. It comes from a joke shop kind of website, but how would you pull this off? One minute you're sitting at your desk, and then you turn around and there's a Ben and Jerry's ice cream cup lying on your desk, spilled? That wouldn't make much sense. But anyway, I'd almost buy one just for decoration. I like weird stuff, OK?

http://www.prankplace.com/seatsavers.htm

Via: Best Week Ever