Personalized Inner Elf Youth T-Shirt. Cute Christmas Youth T-Shirt - Heather with a cute little elf, swinging on Christmas lights says CELEBRATE YOUR INNER ELF. Perfect for all of Santa's helpers. 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.