Katamari Damacy the first things that spring to mind are usually balls, and the rolling thereof. Computer scientist and custom controller kitbashing experimenter Dr Tom Tilley had the same thought and, erm, rolled with it. In a case of life imitating art, Tilley repurposed a trackball he’d made from roll-on deodorant and a soccer ball to play the game with (thanks, Time Extension). You can watch Tilley mucking about with the trackball to control an emulated version of the PS2-era Katamari Damacy in the video below.