Personalized You are the best Unicorn I have ever seen Baby Bib. When no one else sees Bob as a Unicorn, his friend the Fairy knows just what to do. You are the best Unicorn I have ever seen Baby Bib - White and Black, from "Bob is a Unicorn" by Michelle Nelson-Schmidt. 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"