Laser Watch. The watch itself looks like a simple baller band in white and gray. But just press a button, and the time will be projected on your arm in laser light so you (and everyone else around you) can read the time off of it.
Biostamp by MC10, via dezeen: Flexible electronic circuits that stick directly to the skin like temporary tattoos and monitor the wearer's health. Potentially these could be used in healthcare to monitor patients in their normal environment and without tethering them to large machinery. #Biotech #Biostamp