Runic Tattoo: Dwarven Fortitude

Increases your constitution ability score by 2 (no upper limit)

• Requires: 3oz of high quality crimson ink, 500gp in powdered agate, 2oz of powdered liver from a dire bear, and 2oz of saliva from a dwarf with a constitution higher than 17
• Location: 4 square inches on the upper right breast 
• Warning: infusion will increase the speed at which all of your hair grows (double)

This is an arcane tattoo.  It must be performed by an artificer who is skilled in the art of tattooing.  It MUST have all ingredients in the exact amounts specified, and it must be located on a specific part of the body.  It is a very painful process, and you must make a CON saving throw (DC is 25 - your character level) or you will suffer 1 point of exhaustion for 23 hours after the tattoo is complete.  The effects of the tattoo will not be active until after you have taken a long rest.  If you are a creature with excessive amounts of body hair, the hair must be shaved away from the tattoo location, and it will never grow back due to the arcane nature of the tattoo.  (The same goes for creatures with scales.)  Though the overall design of the tattoo isn't important, it must include the proper runic symbols and cover the required amount of skin in order to be affective.  There will be a sparkle to the tattoo, depending on what gem material component was involved in the infusion.  All components, of course, will be used in making the tattoo and will thereby be consumed.  (Unless the artificer creating the tattoo is a friend, he will likely also need to be compensated for his or her work, and they tend to charge a lot.)  Because of the nature of arcane tattoos, you can never have more than two, and never more than one in a specific area of the body.