Yeah,being somebody's practice canvas is tricky [that's why I
   said uncle 'cause there's always an uncle out there with a
   tattoo kit in the basement or whatever tongue emoticon ] I was
   someone's test subject once. I helped a friend build a homemade
   tattoo gun out of a motor and needle. He tried it on himself,
   then on me. On my ankle. It hurt. It was micro-tiny but it
   worked. Then on his own (once he 'got' the mechanics of it) he
   decided to take apart an electric shaver and use the motor to
   make a tattoo gun by himself. It worked but... too powerful.
   Took him a few weeks to heal the skin gauging but it worked. The
   ink stayed. After a while, he saved up and got a kit. Through
   the years, he got good, got jobs at various tattooo parlors and
   stuff. I don't have any tattoo now. It faded within a few months
   but it was cool helping somebody start their journey. But if I
   wanted a regular tattoo, yeah, I'd make sure the guy/girl has
   done at least a FEW dozen tattoos first.