Personalized Teddy Bear Birthday Youth T-Shirt. Personalize this darling teddy bear birthday design Youth T-Shirt - Black with a name or slogan for your little girl. Pink cake, balloons and party bear is oh so sweet. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.