Personalized Ballerina 3rd Birthday Youth Long Sleeve T-Shirt. Ballerina 3rd birthday Youth Long Sleeve T-Shirt - White with a pretty pink tutu on a hanger and stars says THIS BALLERINA IS THREE. Perfect for futures ballerinas and ballerina theme birthday parties. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)