In the future, you will be able to use skin-friendly electronics to control your mobile devices. As MIT Media Lab explains, with DuoSkin, you can create attractive on-skin user interfaces. Gold leaf is used for this process.
These temporary tattoos let you turn your skin into a controller for your devices. They can also be used to display output or for wireless communication. For instance, your DuoSkin device can change color based on your body temperature or emotion.