Personalized Beer Pong Referee Baby Bib. 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. Our Baby Bib is rated high in convenience and durability and with a variety of fashionable colors, your baby can be trendy. Mix and match to any outfit. 100% cotton ring spun combed heather colors are cotton-poly. Width 7.75", Length 11.75"