3D Mechinical Tattoo on Feet

                                  3D Mechinical Tattoo on Feet
Prison tattooing is the practice of creating and displaying tattoos in a prison environment. Present-day American and Russian prisoners may convey gang membership, code, or hidden meanings for origin or criminal deeds                         

Since tattooing in prison is illegal in the United States, the inmates do not have the proper equipment necessary for the practice. This forces inmates to find ways to create their own tattooing devices out of their belongings.
source : wikipedia