The Human Piano

I am not so sure about the "piano" part of this, but it does look very much like a lot of fun.

A few years ago I had this idea of building a monstrous instrument that would be played with giant wire-bound gloves and big copper bars. After making the prototype I accidently grabbed one of the bars with my hand and realized that the sound went through me!. That led to the idea of a whole piano made up of human hands

Details and video are found here.