Personalized Mardi Gras Beads Youth Long Sleeve T-Shirt. Mardi Gras Youth Long Sleeve T-Shirt - White with green, yellow and purple beads on a string. Text says MARDI GRAS. Perfect for Fat Tuesday! youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)