I would like to make a prosthetic arm!

I would like to do a prosthetic arm which will have pressure sensors on the ends of each finger. Depending on the pressure that the sensor is receiving, the person will feel it at the end of where his actual arm ends. For that I am planning to use a flat surface controlled maybe by motors that will be attached to the skin. This may by at least a bit give back the sense of feeling with a different way.