Personalized Little Elf 3rd Birthday Women's Plus Size T-Shirt. Women's Plus Size T-Shirt - Vintage Red for a little elf's 3rd birthday with a polka dotted number 3 and snowy striped North Pole sign. Perfect for Santa's helper on his or her Christmas birthday. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)