Potential
The SKIN project is truly a new twist on the mood ring idea. The electronic mood tattoos from Philips appear to change with the wearers moods!

"The SKIN Tattoo project investigates the use of 'electronic' ink that would allow people to have dynamic tattoos with an infinite number of display options. In much the same way as make-up is put on and taken off to suit the occasion, a tattoo could alter whenever desired," Philips said. "The tattoos could even change in response to gestures or emotions, which opens up novel ways of communicating and interacting with others."

Talk about wearing your heart on your sleeve.

Also check out this: