I'm a dorky doctor (a surgeon in fact) so I had to get something medically related. I found some old anatomical designs and used them to come up with the design. I didn't get to watch any of it being done because it's on my left ribs. It wasn't really painful, but just annoying. Oh, and it's really hard to take a picture of too!
the overall placement:
closer, just to get an idea of the great color job:
Done by Seth Wood of Daredevil NYC at Boston Tattoo Convention