Nobody really knows EXACTLY what the tooth fairy looks like. Many Americans believe the tooth fairy looks like Tinkerbell and carries a wand. Internationally, people believe children lose their teeth to mice, rats and other small animals. The baby tooth is a sacrifice to a rat in hopes that the adult teeth will grow in as strong as the rodent's. What do you think the tooth fairy looks like?
Besides using your teeth to build castles, some say they also use them to make a magic powder that protects them from big birds who may think they are insects!