 The sources of the characters can be seen in Sarahs bedroom at the  beginning of the movie. She has a stuffed animal that looks like Sir  Didymus on her shelves, a doll that looks like Ludo near her window,  a Firey doll on a shelf, a statue of Hoggle as a bookend, and a  figurine of Jareth the Goblin King on the right hand side of her  desk. Also, the dress that she wears in the ballroom scene is the  same as the one on her music box doll, and the marble labyrinth game  is the same as the hedge maze that comes later. There is also a  small painting of a machine that closely resembles the machine with  the giant rotating blades used by the "cleaners".