It's unclear if this Mrs. Voorhees costume is meant to be a female serial killer, or to imply that someone actually married that loser Jason. Shrug!
If for some reason you want to dress up as a female version of a demonic doll, here's a Chucky women's Halloween costume for ya.
Or you can go as Chucky's bride, Tiffany. Hey, this might be a great couples costume for lesbians!