Found this article interesting. People are beginning to think about how to use 3D printers in a new way. Repost from Cnet.
The 3D printer tattoo machine came about during a workshop in Paris organized by the French Ministry of Culture and held at a design school. It all started with a desktop MakerBot 3D printer modified to trace designs onto skin using a pen.
The design students responsible for the mod, who call themselves “appropriate audiences,” took it to the next step and mounted a tattoo gun into the machine. After tests on artificial skin, they sought a volunteer to receive an actual tattoo. One of the challenges was sorting out how to make the skin taut enough to receive the tattoo. They settled on using an innertube with a hole cut into it where the tattoo would go. Read the full article @ Cnet.