Shadow Art.

So there's this art form where you use a bunch of junk to ultimately create a shadow in the likeness of something un-pile-o-junk-like. In this case, with a little back light, silverware is transformed into a motorcycle.

Could be a very cool medium for non-trad, ambient, alternate, anti, whatever it's called, ads.

Oh, and this guy (Shigeo Fukuda) is pretty good at it.