Personalized Nuclear Engineer Future Baby Bib. Future Nuclear engineer Baby Bib - White and Green with a when I grow up I'm gonna be a nuclear engineer and colorful kids handprints. 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"