I think the idea of tatto's being done by players isa pretty good one. I fully agree with the person that posted about the similarities of the embroidery, and along the lines of Bards having the skill. Although I'm not apposed to other professions doing it, seems logical that bards would be good at it posessing the creativity and all. Also liked the idea of making the inks and the whole process. Would totally have my vote. To make it interesting, maybe use perception and mech in their creation.
Ausmodius