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When you're headed to a last-minute party, try one of these 10 easy Halloween costumes with black dresses-- made with the LBD already in your closet.

This wedding dress features white spaghetti straps bodice with detachable lace jacket,dusty blue a-line tulle skirt falling down tocreate a stunning train

Buy Sara Rhinestone Corset Mini Dress in Black from Fashion Nova

Poly Mendes Photography Heads up for headpieces Jeweled hairpins, Buckingham Palace-worthy hats, even a fanciful flower crown or three can look absolutely amazing with the demure lines of a sleeved or high-necked frock. (Just avoid the peacock feathers with a modest bridesmaid dress unless youre consciously going for irony.) Clutch a bouquet alternative When the attendants walk down the aisle holding something other than the classic flowers, the pretty surprise can help a long, flowing bridesmaid dress feel more modern and more true to your style