A gigantic piano keyboard sculptured from perfectly proportioned oversized foam piano keys. They snap together to form one, two, even three full chromatic octaves! Step on any key and play a perfectly formed, in tune note. Play melodies, chords, songs with one student or the whole class.Now go out and have fun playing chopsticks with your boss. Just remember that you'll have to take turns on this keyboard.
Suzuki Instruments’ Big Foot [Product Page]
Ultraziod Keyboard (Gizmodo)