Personalized Kawaii Octopus Babushka's Sweetheart T-Shirt. This cute kawaii octopus with the "Babushka's Sweetheart" design makes the perfect gift for any occasion! Octopus is a symbol of good luck in many cultures, and this sweet design is sure to please any grandmother. The design is available on a variety of apparel and gift items, perfect for any budget. 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.