Luckily, sometimes the BEST ideas are the ones that come from some last-minute inspiration.
Maybe you pulled off Damian from Mean Girls by grabbing a purple hoodie, sunglasses, and making a sign.
Perhaps you really nailed it one year by becoming an IRL Someecard — and all you needed was poster board and your favorite alcoholic beverage.
Or maybe one time you went really simple by throwing a sheet over your head, sticking on a name tag, and calling yourself a dead Game of Thrones character.
Upload a photo of your last-minute costume to the Dropbox below and tell us some of the materials you used for a chance to be featured in an upcoming BuzzFeed Community post or video!