Personalized Geography Teacher's Rock Youth T-Shirt. 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. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.