Martial Tattoo (3.5e Equipment)
From D&D Wiki
 Martial Power Tattoos
These magical scripts, when activated, crawl off the page and embed themselves in the user's skin as fiery tattoos, each individual image being emblematic of the single martial maneuver granted. The user must meet all prerequisites for the use of the maneuver (though he or she may meet them with the use of other tattoos or similar items.) They come in three varieties:
Novice (1st-3rd level): 6,000gp Scholar (4th-6th level): 30,000gp Master (7th-9th level): 90,000gp
Martial Power Tattoos are identical to Crowns of the White Raven and similar items described in the Tome of Battle, but modified not to take up a body slot (price x2).