Darling Dolly

Darling Dolly, sometimes known plainly as just Dolly is a minor character in the SHTM series, making her debut in Battle Of the Bones. She resembles and is canonically the animatronic of the same name, sold for the 2023 Halloween season. She is a demon that takes form as an innocent doll, but once she gets angry or mistreated, her real demon form begins to take place. She is the first doll animatronic to be produced by Tekky Design for Spirit (excluding Ginny from Lowe's).
Background:
It is clearly unknown at the moment where the origins of Darling Dolly came from, but some say she was manufactured at a toy factory in the pre-1930's. The company that produced her didn't like the product, and so threw it in a deserted hole in a desolate yard.
This yard would be the future home of the Smiths, who built a house there and moved in since 1930. Their daughter, Sally, was born in 1931, and they were all a happy family. Sally, who would later become Darling Dolly's owner, was described as a bright, optimistic and cheerful young girl who loved to play outside and her friends. She especially liked to buy dolls, but unfortunately, the Smiths were a middle-class family, and couldn't afford very much, that saying, Sally didn't really have any cool and fancy dolls. That was until she played outside one day...
That fateful day, Sally was running and skipping in her backyard, until she tripped on a lump in the grass.