They help Santa.
Occasionally they sit on shelves.
The paper variety are wonderful for cutting practice:

**~However~**, as my Super Stars and I found out today, ~if you add sparkley glitter to their hats~ and leave the room for **any length of time** (certainly long enough for the students to visit the music room and for the teacher to get a Diet Coke from the staff lounge machine), the elves may get a little...
...mischievous.
Oh.... my...
They climb into the window sills:





