Tattoos and piercings just aren't enough for some people... probably because those forms of body modification have become completely mainstream. Accordingly, we now have subdermal implants.
WIRED reports, "Shannon Larratt was a child when he first dreamed about modifying his body. When his father would make pizza and sit with him to watch Star Trek, Larratt was captivated by the diverse looks of people from other worlds. He was particularly taken with the forehead ridges."