A new study from John Rogers of the University of Illinois at Urbana-Champaign promises an exciting new tech-chic addition to the world of body modification: flexible, implantable LEDs that would radiate sub-dermal luminescence. Just imagine the possibilities.
No joke, Heward Dental Lab offers customized tooth tattoos at a reasonable price. Plus, they only stay permanent as long as you'd like them to - "they can easily be removed in five minutes in the dentist's office with just a little grinding with a rubber wheel."