I don't understand why blizzard has never let players inscribe runes into their bodies. Obviously they are powerful and look amazing. Several NPC's already have rune tattoos and they look amazing!
http://static.mmo-champion.com/mmoc/...stonetalon.jpg
http://static.wowhead.com/uploads/sc...rmal/82362.jpg
http://static.wowhead.com/uploads/sc...rmal/75856.jpg
http://static.wowhead.com/uploads/sc...rmal/75867.jpg
http://static.wowhead.com/uploads/sc...rmal/75862.jpg
If only this could be an expansion of the inscription skill for cata