Personalized 3rd Birthday Rainbow 3 Year Old Girl Baby Bib. 3rd birthday party idea for three year old girl with boho style pink rainbow 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"