The Doctor Who theme, Adam Savage of Mythbusters, and tesla coils! (SLYT) ... just a part of this weekend's S.F. Bay Area Maker Faire.
The Maker Faire in Austin is over but you can see all the blue ribbon winners here. Dont miss stuff like the star wheel, or the life sized mousetrap, artgolf, high-voltage toys, a parking lot trebuchet, and of course robots.