Personalized Nuclear Ornaments Circle Baby Bib. A green tree with radioactive symbols instead of ornaments in a colorful circle is a unique gift design for college students, physicists, environmentalists, nuclear engineers and workers at birthdays and holidays. 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"