Personalized Gramps Little Monkey Grandchild Youth T-Shirt. Gramps little monkey Youth T-Shirt - White with jungle animal for a grandson or granddaughter from their grandpa. 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.