Personalized Grandma Irish Shamrocks Toddler T-Shirt. Grandma text and an array of shamrocks with a green outline is a unique Irish gift design for grandfathers at birthdays, holidays, and St. Patrick's Day. A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.