The Kinetic Artist.
Theo Jansen, he is an artist that makes wind powered sculptures. he calls himself a 'Kinetic Artist', these works are made from light weight material. He calls these works "Strandbeest".
There is a film being made about these works here, the Strandbeestmovie-weblog.
His work has an incredible artifical, science fiction feel. But the images of them walking along the sand is astounding to say the least.