Personalized Geography Teacher's Rock Newborn Layette. Geography teacher's rock using rock as a noun instead of a verb with a happy rock holding the earth is a humorous gift design for your favorite teacher at back to school, birthdays and holidays. 100% combed ringspun cotton 5.8 ounce 1×1 baby rib sleeper. 3/8" flatlock binding at envelope neck and cuffs. Back sleeve flap to protect hands. Elastic opening at bottom. Infant: 0-3 Months