Colt's Timeless Tattoos
438 N Frances, Madison, Wi
100% positive
Directions: Through the shop and into the hallway of the main house. You'll know the door because it will say "unisex bathroom" on it.
Comments: The door requires a key, but usually whoever is working is happy to pass it on to you, regardless of whether you are getting work done. This may be less true if there is only one artist working, if they have to stop tattooing to direct you.