Tattoo

Source Advanced Player’s Guide

The cost of a tattoo depends on the quality, size, and number of colors used. A coin-sized tattoo in blue ink that will blur over a decade may cost 1 cp, a hand-sized one in black ink that won’t fade costs 1 sp, and a tattoo covering an entire back takes several sessions and costs 10 gp. Each additional color costs as much as a single tattoo of its size.