This must be one of the coolest chess sets ever made. Artist Paul Fryer used 32 vacuum tubes to create "Chess Set for Tesla," with each tube sporting an icon up top showing which chess piece it is. Make a move by unplugging the tube, and then plugging it into the destination square.
Only seven of these unique chessboards were created, but the idea is good enough to be mass-produced — if they could find enough tubes. Kinda reminds us of those gorgeous nixie clocks. Jump for two more pics: