At Nuit Blanche 2012, artist Jon Sasaki presented Hands on the Van. The installation had group of contestants competing to keep their hands on a cube van. The last person to keep their hands on the van won $500, the amount of the artist's fee for the event, which was stored inside the van. It starred artist Lex Vaughn as the contest moderator.
Here's a 30 second iPhone video I created: