Personalized Principal Cupcake Design Long Sleeve T-Shirt. Cute school Principal design with three chocolate cupcakes says Principal Will Work For Cupcakes on this fun Long Sleeve T-Shirt - White school appreciation gift. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL