With DuoSkin, wearables are no longer just an accessory. They become part of your skin.

 The MIT Media Lab and Microsoft Research set out to create on-skin user interfaces using gold leaf, which is commonly found in craft stores, as a conductor…look like fashion statements but they include other materials and electrical components that make the tattoos interactive.

The tattoos can turn into an interface that can be used, for example, as a trackpad or a button to remotely control your phone…

In the near future, the technology could serve as a substitute for identification, subway cards, and even movie tickets…

…“We see this developing as a business model.” She thinks users might well be willing to pay a fee at “temporary tattoo parlors” where someone else could custom-design the product.

Source: MIT and Microsoft (MSFT) designed a smart tattoo that can turn your skin into a touchpad — Quartz