If You have ever needed a hand this could be just the thing. Japanese scientist have invented metal limbs that are controlled by Your legs and toes. One can actually feel them grip and hold. This could really come in handy if You'll pardon the pun. These could be used to hold items like phones while Your human hands take care of other things like writing or drawing. If they add a few more arms Doctor Octavius or Doc Ock of Spiderman fame might become jealous.