According to USA Today, the average kid gets $3 per tooth under their pillow from the tooth fairy. Some parents give up to $20. Why, back in my day I was lucky to get a quarter! I also used to trudge three miles to school in my stockinged feet, lugging a burlap sack instead of a backpack. For a tooth fairy pillow, I used a lump of clay with a hole poked in it, just big enough for a tooth.