Personalized Mardi Gras Beads Youth T-Shirt. Mardi Gras Youth T-Shirt - White with green, yellow and purple beads on a string. Text says MARDI GRAS. Perfect for Fat Tuesday! Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.