The formula I'm coming up with is going to be based on the complexity of the tattoo and skill of the tattooist, but thats not the question on the table. What I need to know is, how many minutes it takes to ink someone.
Example tattoo that a player has:
%N has a tattoo of a Chinese dragon on %p left arm that wraps around %p arm. Its tail starts out on %p forearm and the head ends up at just below his shoulder. The cyborg looking dragon has slanted eyes that are alive with blue lightning. The claws of the dragon dig into %N's skin. The open mouth of the dragon is lined with razor sharp teeth that look like they could hurt you. The dragon has metallic tentacles flowing out from behind its pointed metal ears.
How long should it take to apply something like that given your tattooist isn't a n00b at doing it.