http://www.jokeroo.com/extremevideos/modern_day_da_vinci.html
More about Theo Jansen:
http://www.strandbeest.com/ (strandbeest="beach animal")
More videos:
http://video.google.com/videosearch?um=1&tab=wv&hl=en&q=%22theo%20jansen%22
Lego Strandbeest (http://www.youtube.com/watch?v=jpEJ-Ij0yns)
Another Lego Strandbeest (http://www.youtube.com/watch?v=0oYEZIRWHLw)
Desktop Strandbeest Walker (http://blog.makezine.com/archive/2007/09/desktop_strandbeest_walke.html)