Personalized Grandpa Worlds Best BBQer Youth T-Shirt. Fun Grandpa Father's Day gift Youth T-Shirt - White has Grandpa, World's Best BBQer logo for the grandfather who likes to grill. 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.