Personalized Pappys Boy Grandson Dinosaur Youth T-Shirt. Pappy's boy Youth T-Shirt - White cute dinosaur grandpa and grandchild or Dad and son gift idea. 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.