I'm developing and engineering cheap, come-at-able hand myoprosthesis, that could be assembled with accesible to common people details and 3d-printing. I want to use several myo-sensors to control multiple muscle groups of User's body, so "hand" will be controlled by other muscles of body that aren't very important or used rarely in everyday life. In my opinion, this technology is the best solution (best price/quality ratio).

Already achieved results:
-Developed and tested base construction, copying human hand anatomy
-Printed and assembled first kinematic model
-Arduino sketch for "myosensor - servo" couple tested on electric part
-Assembled first working model that can move fingers by User eye blinking
-For some reason you can play guitar with proesthesis