Neat video that someone with too much time on their hands (or possibly the most nerdy person in America) put together.
Basically it's a bunch of balls on chains hung at different lengths and when swung at the same time make funky fresh patterns that would make even Cee-Lo Green ... green with jealousy! PUNS!!!!!
Warning! Might make you dizzy or have flash backs to the 60's.
"But Stifler I wasn't alive in the 60's."