Write an email from a child to the tooth fairy asking if she’ll take his grandma’s dentures in exchange for money. Make it funny, with some child-like spellings and phrasings.
Dear Tooth Fairy,

I hope you're ok. I bet it's a rough job since you have to be up all night long, that would make me grumpy. Do you ever get sleepy while you're out collecting teeth?

The thing is, I haven't lost any teeth in a while. My mom says it's normal, but I've only lost four, and Sam in my class has lost seven. He's gotten a lot more tooth money than me. I need money so I can go play arcade games at the movie theater. Sam gets to play a lot more games than me.

I was thinking. Grandma is visiting for the weekend and I noticed she has a bunch of teeth that just come right out. They have metal and stuff on them, too. So I bet they're worth more than just one of my teeth. Her teeth are a whole lot bigger than mine too. I bet they're worth like 25 bucks. Maybe 20, but that's the lowest I'll go. I don't think she'd miss them, I never see her eat anything anyway and she always grumbles about the food mom makes.

So do we have a deal? I'll put them under my pillow tonight. 20 bucks. 

Your friend,
Thomas 