Personalized Happy Mardi Gras Unicorn Long Sleeve T-Shirt. cute unicorn wears Mardi Gras colors on this Happy Mardi Gras Long Sleeve T-Shirt - Pink. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL