Personalized Blue Octopus Auntie's Sweetheart T-Shirt. Cute, kawaii octopus is the perfect design for auntie's girl! Baby, child, children will love this aunt's sweetheart! Auntie's boy or girl will love this auntie's baby design! 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.