Sally, a mother from Southern Highlands, Australia, created something that combines the imagination and wonder of the tooth fairy with a new method of parenting. When she invented this idea, she immediately saw the profit potential and brought her idea to Shark Tank Australia.
Her idea is called Lil Fairy Door and it has become an extremely popular product since it appeared on the show. The idea is essentially a tiny door that mounts on your wall and is used to incentivize kids. The doors are said to allow fairies to come in and out of your home to leave notes and gifts for well-behaved children.