Personalized My 1st Mardi Gras Crown Youth T-Shirt. Mardi Gras crown for girls with it's my 1st Mardi Gras quote that comes on this Youth T-Shirt - White 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.