ElektroKraft created a new NES cartridge dedicated to percussive electro-goodness. Super Synth Drums turns the NES controller into an 8-bit sound triggering tap pad. And if you're underwhelmed by the cramped retro-style interface, check out this video of the DrumAxe touch countroller created for use with the cartridge.
- Super Synth Drums cartridge at Electrokraft
http://blog.makezine.com/archive/2008/06/nes_synth_drum_cartridge.html