We've seen some pretty wierd places to print things before, but this one is new to me. A team headed by Dr Ray LaPierre at McMaster University in Hamilton Ontario, used a focus ion beam microscope to etch the school's crest into a human hair. Apart from the little matter of needing your own Gallium Ion shooting device, I can see tons of future fashion trend possibilities with this one. And the best thing is, unlike with ink tattoos, your loyalty can be ended with a quick trip to the nearest hair salon for a trim.

From Boing Boing