Personalized Christmas Penguin Joy Youth T-Shirt. Christmas Youth T-Shirt - Kelly Green with an adorable, happy penguin with a stocking cap, jingle bell, candy cane and ornament. Little penguin is the "O" in the word JOY. 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.