Get your FREE Coca-Cola Commemorative Bottle when you log into your Twitter or Instagram account and upload a photo that depicts your 'happiest moment'! Include the hashtags #CelebrateMoments and @CocaCola when uploading your photo. Once Coke approves your shared content, you'll receive a comment inviting you to take required steps to claim your offer. You must claim the offer before July 6, 2014 at 11:59 PM EST or before supplies are depleted.