Here's a new video from Gaudi showing how to build your own DIY version of the Matryomin. The design uses an Open.Theremin core as the theremin "guts".
For those unfamiliar with the instrument, the Matryomin is a theremin designed by Masami Takeuchi and housed in a traditional Russian stacking doll, or Matroyshka.
Learn more about the Open.Theremin project at http://www.gaudi.ch/OpenTheremin
