Personalized TGIF Fun Grandma Youth T-Shirt. Youth T-Shirt - White for a cool and fabulous grandmother that says TGIF THIS GRANDMA IS FUN! with fun letters and pink hearts. Perfect for any grandmother, nana or nonna. 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.