Rigging an MRI machine with club speakers and lights
One for the historians amongst us. 

One of the companies I worked for (many years ago) was founded by a brilliant engineer by the name of (Sir) Charles Parsons. He invented many things but perhaps one of the strangest was the Auxetophone (originally patented by Short) - a compressed air gramaphone sold in the U.S. as the Victor Auxetophone. (see http://en.wikipedia.org/wiki/Compressed_air_gramophone)



There's even a Youtube video for your entertainment.

http://www.youtube.com/watch?v=J7SV65DFNy8