Do dogs have tooth fairy's?

This morning Zach yelled, "I found a tooth and it's not mine." I looked at it, and it was a tooth, a pointy triangle little dog tooth. I told Zach that Lucky lost a "puppy tooth". Zach got excited and said, "he's going to get a bone, tomorrow morning he's going to get a bone." It took me a minute to realize he was talking about the tooth fairy. It just made sense to him that the tooth fairy would bring him a bone, not money.