This is the control panel I came up with. Its a nest of interlinking 3D printed "Puzzle" bits... which can be easily rearranged to suit your needs.. I have arranged this combination to mimic the position of my arm, so the 5 finger knobs are closest to screen etcetc to the shoulder far right. This allows a more intuitive and quick way to adjust parts of the model with out much fuss.
If you another use in mind for this type of panel then you will find the STL files
for both the puzzle bits and knobs over at Thingiverse chiprobot designs
Each of the potentiometers are fed to individual channels of a 16 channel analogue to digital converter.
A Parallax Propeller chip access's the 16 analogues and sends them over a Serial link running at 115200 Baud.
At the other end a PySerial (python serial module) services the data so that the Blender python script can gleam off the received analogue data.
Blenders Game engine uses this data to rotate targeted virtual limbs, allowing you to move,scale and more importantly rotate them in real time.