If you enjoy games like Dance Dance Revolution then you should check out this. Its a custom made dance pad for the game which started life as being not so good at all being made out of cardboard. The next version was made out of wood and was noisy and uncomfortable. The final model pictured above shows the mat with no fancy colours on it, no flashing lights but apparently it does work and is quiet. It is made from 2 separate parts. The pad and then the electronic circuit to connect it to the computer.
If you fancy making one of these your self and can play around with electronic circuit boards then the schematics are listed below with a link to the main page of the dance pad also.
Its a custom made dance pad for the game which started life as being not so good at all being made out of cardboard.