Call us crazy, but one of the most attractive parts of having an artificial limb is the decidedly robotic aesthetic (and potential super strength ), but we totally understand why some people would be interested in having something a little more ... natural. Cue the Pentagon-backed researchers who are "creating patches of synthetic skin that'll provide direct feedback to the brain" for inclusion in artificial limbs as early as 2010, reports Danger Room. The "skin" is made of a "rubbery polymer called polyimide" and infused with carbon nanotubes (think we can upgrade our skin with this stuff?). Check out a video of double amputee Jesse Sullivan demonstrating a prototype of the bionic arm after the break.