The theme is catastrophic cacophony and the challenge is to build the loudest, craziest, flashiest automated "musical" instrument ever. You will have to be able to step back and let your creation play by itself, even if it destroys itself in the process.
This event was a lot of fun, I helped build a sort of guitar that gets strummed by a motor. With a little more time I think we could have made it less repetitive by add another motor to move the first one back and forth or up and down.
Other teams had things that sounded like higher frequency wind-chimes, or just pure noise.
Dorkbot Cacophony from binarymillenium on Vimeo.