bouncy sony commercial

My modern culture and media class just introduced me to a great blog www.boingboing.net where i found this ad.
keep in mind, I've always loved bouncy balls, I tried this on a much smaller scale at six flags magic mountain. I think I had around 150 though, instead of the 250,000 of them were used to make this. atleast people got to wander through my creation. http://www.bravia-advert.com/