Personalized Nuclear Ornaments Circle Toddler Full Zip Hooded Jacket. 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. 7.5 oz., 60/40 cotton/polyester. Jersey-lined double-needle hemmed hood. Pouch pockets for all their treasures. Coverstitched shoulders and armholes. Coverstitched rib waistband and cuffs.