Leprechaun Costumes Whether it's St. Patrick's Day or any other day of the year celebrating your Irish heritage -- or if you happen to be a fan of the Notre Dame Fightin' Irish football team, you don't have to travel to the end of the rainbow to find some awesome accessories and costumes to turn you into a Leprechaun. Put on a curly green wig or use some spray in hair color in green to add a touch of the Irish to your tresses and give a stunning, head-to-toe green look! For a leggy lass, there's the Luscious Leprechaun costume, an emerald affair in short, satin and velvet with a pair of shamrock-bedecked thigh-highs to complete the look!