Personalized Whale Bubbe's Sweetheart T-Shirt. Looking for a fun and unique gift for your grandma? Look no further than this adorable "Whale Bubbe's Sweetheart" design! This cute and kawaii design is sure to put a smile on her face, and it's sure to become one of her favorite things to wear. Order yours today and let your grandma know how much you love her! 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.