Dolls have always creeped me out. Even till this day when I'm walking through Toys R' Us with my son, I can't walk through the doll aisle fast enough. All those vacant expressions staring at me, their lifeless gaze just gives me the heebie jeebies.
And there are undoubtedly ways to make scary dolls even scarier. You could pluck out their eyes, give them weird haircuts, or paint some horrifying makeup on them to really layer on the fear.