I am wracking my brain and cannot for the life of my remember the name of a book I read as a child/pre-adolescent. The premise was that there was a blonde doll who was actually “alive,” and demanded all sorts of things from the nice girl who owned her—like a car, clothes, etc. And the girl would try to explain what she could and couldn’t afford. Later I think a brown-haired doll who is nicer replaces her? I remember the hard cover of the book being a teal color and there being a photo of the blonde doll on it.