Bionic Arm

'Iron Man' Star Downey Presents Boy With Bionic ArmJust like Tony "Iron Man" Stark, Robert Downey Jr. is a part-time superhero — at least in the eyes of one seven-year-old boy.
Retired Marine Receives Cutting Edge Bionic Hand After Amputation: 'It's Like I Have A Hand Again'What once seemed like science fiction is now a reality that is helping a wounded former U.S. Marine change his life.