Personalized Orange Octopus Grandpa's Sweetheart T-Shirt. Looking for a gift for your octopus-loving grandma? Look no further than this Orange Octopus Grandpa's Sweetheart design! This cute and kawaii design is perfect for any grandma who loves her grandchild dearly. It's also a great gift for a baby shower or pregnancy announcement. 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.