Bone tattoos that show the flesh torn away and show bone and often mechanics under the flesh gained popularity in the early eighties, biomechanical tattoos were largely created in the San Francisco area and spread like wild fire. Using bones in tattoo designs to form names and letters is very commom and is still often done. BOT: 1 No cents tattoo design BOT: 2 Ripped flesh tattoo design BOT: 3 Crossed bones tattoo BOT: 4 Broken bones tattoo flash design