The title should be self-explanatory. On my list, I would have to say Peek-A-Boo Penny, Rosemary, and Lunging Lily, who are great unpredictable startles, and the Creepy Rising Doll for having a cool twist. The Twitching Banshee is also really terrifying. I don't know about any scary male props. I generally don't find zombie props scary, and most props with dialogue are more entertaining than frightening.