Personalized Football Birthday Party 2nd Bday Boys Youth T-Shirt. 2nd Birthday Football Party Youth T-Shirt - Kelly Green gift has a sports ball and football helmet on this gift for a little boy who loves football. 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.