Tooth fairy....歯が抜けたょ～

Sora has been teething for a week or so now. Last week we noticed she was chewing her special chew toys more often and then that she had lost one of her front teeth. This morning S noticed she had lost another tooth and rescued it to put under her pillow for the tooth fairy. What does the tooth fairy bring little puppies?　こちらでは、抜けた乳歯を枕の下において寝ると、翌日には、歯の妖精が、コインに変えてくれるという言い伝えがあるみたいです。日本だと？屋根に向かって投げる？　子犬とか子猫の歯が入れ替わる時、乳歯はどうなるのかな？　飲んじゃうんじゃない？食べちゃうんじゃない？という疑問があったんですが…たまには…？！