Survival Research Labs has designed and produced an incredible gadget called 'The Spine Robot.' It looks almost exactly like what Dr.Octopus from Spiderman conjured up.
The design for the arm was based off a robot that was used to deactivate bombs in Iraq. The arm is incredibly flexible and is able to move every which way. It is made with four different rope tendons and is motorized by a hydraulic system.
On the end of the arm is a four-pronged hand that can open and close, enabling the operator of the device to grab things. It made its debut in front of a large crowd at ArtPadSF. It's quite large too and measures in at 12-feet. You can watch the robot in action on the YouTube video.