There's a retro commercial for a laughing doll that's been floating around for a while, but if you haven't seen it . . . it's TERRIFYING.
It's for an old toy called the Baby Laugh 'a' Lot, a little doll that just rocks back and forth and cackles. It's hard to tell what's more horrifying: The doll, the creepy girls from "The Shining" who want it, or the announcer guy who starts laughing like the Joker.