dark blue dress womens Amel Navy Blue: Versatile Navy Sleeved Dress on sleeves for upper arm coverage / Easy pull Women's Blue Dresses: Shop Styles

Why Its Great: Cruellas over-the-top style and fierce personality make this costume fun and memorable

Statement earrings are always a go-to accessory to glam up a plain black dress, try drop earrings that are two-toned for an extra sharp look and never underestimate the power of some silver hoop earrings on a plain black dress

Didn't they do a great job on their flower crowns

And dresses feel like an obvious place to start, given that Ralph Lauren's finest protg was partial to a form-fitting midi

For a dressy occasion pair a formal white dress with metallic heeled sandals in gold or silver, or opt for a sleek pair of nude heels

Register for a local 5K, organize a mini triathlon, or create your own course