She leaves a dollar bill at our house - except the first tooth gets a dollar bill to spend and a silver dollar. When my DS lost his first tooth he was literally in tears that the tooth fairy was going to take his tooth. He wrote her a note begging her to please let him keep it. Also, when we went to Disney this past December, he was missing both of his front teeth. We had dinner at 1900 Park Fare and the Fairy Godmother said she was going to have a talk with the Tooth Fairy about getting those two front teeth to hurry up and come in. He thought that was pretty cool.