Personalized Beer Pong Referee Toddler Long Sleeve T-Shirt. Beer pong referee, keep your balls in line text with a game out of control is a funny back to school design for flip cup competitors. A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.