Seeing as how there's a woefully narrow spectrum of socially acceptable Christmas costumes, most people don't dress up in silly costumes on Xmas. Think about it: you have Santa Claus, Mrs. Claus, King Herod, She-Krampus, bale of manger hay, Mrs. King Herod, and that's it, really.
Nonetheless, costume companies are mercilessly pushing for the Halloweenization of Christmas, transmuting every possible aspect of the holiday into an accidentally frightening pile of terror garbage. Watch -- this time next year, you'll see "Bride of Frankincense" and "Sexy Myrrh" decking the halls of your neighborhood party-crapola emporium.
8Nutcrackers From Hell
You may know The Nutcracker as a quintessential seasonal ballet about child endangerment and rat kings. But what you may not realize is that human-sized nutcrackers are absolutely terrifying. Tchaikovsky never warned us about this shit: