When in the course of human events, Mitt Romney issues a death threat against Big Bird, Americans will defend the beloved Sesame Street character with every fiber of their being.

The winning defense? Making Big Bird the No. 1 Halloween costume in the country.

Feeling inspired? Here's a make-your-own tutorial from Internet inventionista JacquieLongLegs.

Wait -- you were just going to carve Potato Jesus into your pumpkin and call it good? Think again!

Attention, women: You're not officially grown up until you've donned for Halloween a slutty incarnation of your childhood trick-or-treat attire.

See the rest of the scary transformations here.

"I've never even heard of Andy Warhol!"

Meet Boo -- oh-so-aptly named.

Saddest ghost ever?