When I was little, I strongly believed that the Tooth Fairy used all the little teeth to make castles and stuff.
Yup. =]
A childhood belief about fairies

others believed things like this
- I used to think that the tooth fairy puts you in a deep sleep before stealing your tooth/teeth.Anon
- I used to believe that in the tooth fairy took all your teeth and built a tooth city for her to live in!Anon
- My mother told me that the tooth fairy would only come if I brushed my teeth.— Dale
- As a child I was taught that the tooth fairy would buy our teeth so she could add them to her crown.— Lola
- That the tooth fairy drove around in her green Volks Wagon Collecting teeth from all the children.— Wanda Trytten
- i believe in the tooth fairy so much that i make paper bags for her!— Monster High girl