According to a NewScientist.com article, researchers Sigurd Wagner and Stephanie Lacour of Princeton University's Macroelectronics Group have developed an elastic metal film that can stretch up to twice its own length while remaining conductive. It can be embedded in silicone and still stretch up to 15%. The material should be ideal for androids, humanoid robots that need life-like skin which can also carry wiring for sensors. A betterhumans.com article includes a photo of a prototype silicone membrane with embedded conductors.