Elf on a Shelf is a fun holiday tradition where you hide an elf toy around your home, and children try to find it each day leading up to Christmas. The elf is said to be Santa's helper who comes to your house to keep an eye on the children and report back to Santa. It's a great way to build excitement for the holiday season and create some fun and memorable experiences for your family. The elf can be hidden in different places each day, and children can even have the opportunity to move it around themselves.