If your hair is fair or too short to braid, you can add this jet-black wig ($24.99) to your Wednesday Addams costume. The medium-cap wig has two long braids and a hair net.

Sanctuarie Designs Princess Leia Plus Size Halloween Costume (Sizes XL-9XL), $106, Amazon Honor one of the most badass woman to ever hit the big screen in this extremely true-to-likeness dress.