Personalized Dump Truck 3rd Birthday Youth T-Shirt. Youth T-Shirt - Black with big number three and yellow and orange dump truck with dirt graphic. This Is How I Roll. 3rd birthday gift for boys and girls who love construction and dump trucks. 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.