In Lebanon, kids throw their teeth into the sea or a field and say: "Oh sun, oh sun, take the mouse's tooth and give me a gold tooth."
In Indonesia, kids throw their teeth backwards over the roof, but are careful to throw their teeth straight so the new ones grow in straight.
In Venezuela, kids put their teeth under their pillows in hopes that a mouse will take the tooth and bring coins.
In the Yellowknife Dene culture, kids put their teeth in a tree and then dance around the tree so the new one grows in as straight as a tree.
In Sweden, kids put their teeth in a glass of water over night only to find a gold coin in it's place in the morning.
In the Phillipenes, kids hide their teeth in a secret place and make a wish. If they can find their tooth a year later they get another wish.