The strange things that go on inside of Finklestein's lab are always so...
well, bizarre. She's made of different parts that were stitched together and then she was stuffed with dry leaves, yet she's still clever, cute, and goal-oriented. Add some fake stitches to her face with an eyeliner pencil and she'll be ready for a visit to Halloween Town! She poisoned his soup with deadly nightshade and then leaped out the window. He creates wives for himself, (probably because he's so horrible to be around and no one can stand him, but that's beside the point) and Sally was his greatest creation.