Game Labo magazine (a japanese magazine devoted to videogame hacking) published a guide to build a  Wii Balance Board (pressure-sensitive board) like controller. 
While waiting for the real Wii Fit with this controller we can play PAC MAN with our  feets.  Even tought written in Japanese the the building instructions are pretty simple (almost for average videogame hackera). A Classic controller is needed connect the board to the Wii.
Tip: of course this homebrew board is pretty limited but it doesn't have the 300lb Limit of the orginal Wii Balance Board so its ok also for super heavy gamers... Of course this homebrew board is pretty limited but it doesn't have the 300lb Limit of the orginal Wii Balance Board so its ok also for super heavy gamers...