In the Halloween episode featuring stories such as the zombie story, the one about Homer as King Kong, and the one when Homer buys Bart a Krusty doll for his Birthday. In the Krusty sketch, Homer finds out that the doll is evil, and later in the sketch he turns the switch on the back of the Krusty doll to Good instead of Evil. You see Homer being served food by Krusty in the living room, and Krusty is taller than the table as he sets the food down. At the end of the sketch, you see the Krusty doll sitting in the Malibu Stacie house, and he is about the same size as Malibu Stacie. If I'm correct, a Barbie doll is a little under one foot tall, and the Stacie doll is just like Barbie, so that means that Krusty can change from three feet to 11 inches! That doll can do more than just talk and walk!