The Elf On The Shelf: A Christmas Tradition. Every year, millions of elves are back on duty watching on behalf of Santa Claus for all the good boys and girls. This year, dress your Elf boy or girl in the new Switcheroo Sweater set. This one Sweater has five different ways to wear. There are five different attachable decals: gingerbread house, candy cane, stocking, a gingerbread man, and a Christmas tree. With this outfit your Elf will always be stylish and in good taste! Swap your outfit everyday and keep your child guessing.