The Great Pack Rat
When I lost teeth, I didn't want anyone to take the teeth away. My goal was to save all my teeth, so that when I was a grown-up, I could make a cool necklace out of them.
So, I would put a metal washer or bolt under my pillow. My dad told me that the Great Pack Rat would come and take it away, and leave me a shiny coin in return. The Great Pack Rat carried a bundle tied to a stick, full of shiny stuff that he liked to collect. He roamed around like a furry, kindly hobo. I pictured him as about three feet tall, standing on his hind legs, with a face rather like the illustrations of the Water Rat in Wind in the Willows.
The Tooth Fairy was way too frilly and girly, and I still prefer the Great Pack Rat.
I still have my baby teeth, but have not made them into a necklace. Perhaps that means I am not a real grown-up.