A common device in tales of horror is to make the mundane and ordinary creepy. The more innocent the thing or character, the more shocking its transmutation to evil. Many horror movies or films features evil children (Damien in [http://en.wikipedia.org/wiki/The_Omen The Omen]), dolls (Chucky in [http://en.wikipedia.org/wiki/Child%27s_Play Child's Play]), puppets ([http://en.wikipedia.org/wiki/Puppet_Master_%28film%29 Puppet Master]) and other toys. [[Clowns]] and Santa Claus (in [http://en.wikipedia.org/wiki/Silent_Night%2C_Deadly_Night Silent Night, Deadly Night]) also feature as childhood icons turned evil.
Jensen and Jared both report finding the dolls in [[2.11 Playthings]] scary.