Tooth Fairy 2 Puns

I feel like there should be a pun for what the dog tooth fairy brings, but i'm at a loss. anyone have any good puns?

Daughter: "The tooth fairy couldn't find it because it wasn't under my pillow because I found it sticking to my butt this morning."

Me: "So, what you're saying is that your lost tooth came back to bite you in the ass?"

So I told her to cut out a picture of a tooth and put it under her pillow, Turns out the tooth fairy liked her Substi-tooth and gave her 2 dollars