Terry Crews doing an Old Spice commercial with diodes connected to his muscles so when he flexes one the electronic signal from his body powers an instrument. Whether its real or not, it is damn impression and entertaining. :)
This is a commercial from Brazil advertising a way to save on water. By peeing in the shower. It was a cartoon, with silhouettes of people and animals(stephen hawking, king kong, etc) behind a shower curtain peeing.