Personalized Mardi Gras Squad Party Costume Outfit - Funny Mardi Gras T-Shirt. Embrace the fun and excitement of Mardi Gras with this unique costume that showcases your festive spirit. Get yours today and join the party! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.