Lorin Parker’s steam synthesizer was posted earlier, but the information linked was at least 2 years old…
The steam synthesizer has been fully operational for more than a year!!
It generates electronic sound through a modified dynamo, and, well, hisses and clacks like a steam engine.. . No electricity is used to generate an electronic signal. Only fire, heat, steam and metal!
New video, audio and info about the Parker Steam Synthesizer can be found here: http://www.electricwestern.com/stynth.html
Furthermore, Lorin Parker has recently started Electric Western, a DIY oriented site for the dissemination of deviant and expressive electronic instruments. Many other instruments are showing up there as the site grows, and Electric Western will be providing unique kits and instruments in the near future.