Over the Moon Luna Temporary Tattoo Princess Luna is an alicorn pony who has transformed from a normal pony into an antagonist of sorts. However, once harmony is restored Luna returns to her old self and take her place alongside her sister Princess Celestia. Luna and her sister together rule Equestria. These Luna tattoos are perfect for the little rebel in your life. Luna does not conform and neither do these awesome tattoos, filled with moons and stars they are perfect for any occasion.