Personalized Daddy Worlds Best Researcher Baby Bib. Cute childs My Daddy is the Worlds Best Researcher Baby Bib - White that makes a great Fathers Day gift idea. 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"