Really? Years ago I have a strange natural special effects happen to me. It involved cans of soda. When it happened I thought it would make for a great soda commercial. Let me know more about that contest.
You might want to do a google on commercial contests. When I did, to look for the super bowl one, I found several others. One for the Tahoe SUV, another for KFC popcorn chicken.
http://www.google.com/search?hl=en&q=commercial+contest&btnG=Google+Search