To get her unique look, wear light contacts, a pink cheek and lip stain, along with one seriously long, slightly disheveled blond wig. Finish off your costume with some radish earrings, a Ravenclaw scarf or tie, or butterbeer necklace. An optimistic, matter-of-fact disposition will make you truly authentic. For some extra magic, march to the beat of a different drummer with a pair of her distinctive pink glasses. Who knows what you'll see.
To see more pictures of Luna, read more.