Anonymous Coward writes: "The MIT/CalTech prank rivalry is legendary. Who else could put a cow on a domed roof? And it inspired the Geek Classic Real Genius. Apparently the folks at RPI are into it as well, as evidenced by the DropSquad. What caught my eye was the commercialization. They're selling mousepads with photos of various objects that have been subjected to 'gravitational modifications'. When this hits MIT, I want a Cow on the Roof coffee mug!"