Personalized Baseball Skull Youth T-Shirt. Baseball Skull has a pirate skull and crossbones with the skull as part baseball and the bones breaking through. Great gift for any baseball or softball fan who also likes being a pirate! 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.