Think you have the best Halloween costume in town? PROVE IT! The Costume Showdown, presented by Cobb Travel & Tourism, is a social media costume contest that will fuel entertaining competition and is sure to enhance your whimsical experience at Owl-O-Ween.

How do I win?

On October 27th or 28th, you’re experiencing a mystical and magical world at the 5th Annual Owl-O-Ween Hot Air Balloon Festival, and you’re all dressed up in your most impressive Halloween costume. Owl-O-Ween is Atlanta’s largest costume party – of course you want to be a part of the Costume Showdown!

  • The essentials you will need:
    • Your cell phone
    • An Instagram or Twitter account
    • Your smile!
  • Snap a photo of yourself showing off your costume at Owl-O-Ween (a selfie or with friends!) and post your photo to your Instagram or Twitter account.
    • You can snap your picture anywhere throughout the festival – there is no required, physical check-in booth for picture taking.
    • Look around – this hot air balloon festival is the perfect backdrop! Take your selfies with the balloons, smile with stilt walkers, or locate one of the many quirky installations where volunteers will be on hand to take your picture for you!
  • Be sure to tag your photo with #OOW17. This step is critical! By tagging your photo with #OOW17, you are submitting your photo into the Social Media Costume Showdown. Photos without the hashtag will not be considered.
  • Visit to see your photo online!
  • Categories for the Social Media Costume Showdown are:
    • 1st Place
    • 2nd Place
    • 3rd Place
    • Best Kids’ Costume
  • The Costume Showdown winners will be determined by quantity of votes/likes online at
    • How to vote:
      • Locate your photo, or several of your other favorites, and click the heart to like the picture and vote.
      • First time users will be prompted to register in order to vote. Once you have followed the steps to register and sign in, vote away!
    • Like/vote on your favorite costume showdown photos through the website. Likes/votes on other platforms will not be counted.
    • Voting will end at 11:59 p.m. on Sunday, October 29, 2017.
    • Winners will be announced on Monday, October 30, 2017. Cobb Travel & Tourism will contact the winners via social media and/or email.
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Cobb County Visitor Guide