Note: Just watch the video.
This is a special 'Peek-A-Boo' edition UnDeadTed (previously: all these ones). UndeadTeds are teddy bears that have been customized to traumatize children. They make the perfect replacements for American Girl Dolls. Don't ask, just replace. Preferably in the middle of the night.
Keep going for the video. Cannot be unseen though, so remember that when you make your kids watch it.
Thanks to Scotty, who agrees terrifying children helps them build character.