Affiliate Marketing Secrets

What is the name of that movie where three kids don’t have parents and they go to some secret parent market. They each get coins to make a chice of parents. They each take turns in picking parents, I believe one choses circus parents, and the girl chooses some rich lady. Well at the end none of them work out, and I believe the old lady next door is a witch and she kind of helps them out. It looks like an 80’s movie but I was so young when I saw the movie. Can somebody please help me relive my childhood dream. Thanks