Personalized Grandmas Have Fun T-Shirt. T-Shirt - Gold for or cool, hip and fun grandmas, nanas, grannys and nonnas says GRANDMAS JUST WANNA HAVE FUN. Spoiling the grandkids of course. Or maybe with Grandpa! Cute gifts for grandma. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.