burgundy knit dress Buy Red N. Premium Sparkle High Neck Knitted Jumper Mini from Next USA neck creates a flattering effect Maxi Sweater Dress with Pockets,

This black tulle overlay with red satin underneath prom dress features illusion halter neckline, half open back with invisible zipper closure, floor-length skirt with horsehair hem

And for more costume ideas, check out all my past Halloween costumes!

Buy Plus Size Wedding Guest Midi Dresses Semi Formal Black Funeral Cocktail Party Summer Elegant Lace Graduation Mother and other Cocktail at Amazon.com

When it comes to black tie dressing, it partially has to do with lengthwith floor-length far and away the best option, despite the exceptions outlined abovebut really, it has to do with finding a dress that is too fancy to wear to a cocktail party