You Built What?!: A Remote-Controlled Robo-Arm
From: Popular Science - 12/2012 - page 85
By: Gregory Mone

A 16-year-old's homemade wireless robotic limb. 

Easton LaChappelle plans to evolve the current robo-arm into an inexpensive
yet highly capable prosthetic. 

Read the entire article and view a video (4:32) at:
http://www.popsci.com/diy/article/2012-11/you-built-what-remote-controlled-robo-arm