Link to more info: https://www.youtube.com/watch?v=MnX6pHC9VwE
I saw the Crayola Easy Animation Studio for about $17. It would be cool to hack this to drive Blender animations. It looks to have about 16 potentiometers or the equivalent packed onto a manikin that you can position.
I can see that this would make a great, widely useful hack. Either by writing a (presumably small program) to get the values off of all those potentiometers, or by linking it directly into Blender, which would be a much, much bigger job.