Personalized George Is Not Playing Around Youth Long Sleeve T-Shirt. This cynical penguin doesn't know that using your imagination can be fun! George Is Not Playing Around Youth Long Sleeve T-Shirt - Red, for the George fans out there. From the book "Bob is a Unicorn" by Michelle Nelson-Schmidt. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)