Tattoos have signified rites of passage for centuries —tribes have used them to commemorate headhunting expeditions, New Zealanders decorate their faces with a mask pattern or Moko, Buddists often combine religious symbols with animal or forest images, gang members tattoo a tear next to their eyes to represent killings, and sailors tattoo images to commemorate exotic voyages. Today, tattoos are commonplace, a decorative ornament, a way to express one’s individuality; the rebel factor is still present.