Personalized 8th Birthday Party Unicorn Baby Bib. 8th birthday girls unicorn Baby Bib - Black and White with this girl is 8 quote. 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"