Personalized Ice Cream We're One Twin Boy & Girl T-Shirt. 1st birthday WE'RE ONE T-Shirt - Gold with adorable, smiling strawberry pink and blueberry ice cream cone twins with cherries on top. 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.