If your AirPods are a lost cause, you aren't completely out of luck. Even if you never purchased AppleCare+, you should contact Apple for replacement options. If only the buds themselves aren't working, Apple will still replace them for a fee. If you have a 1st or 2nd generation set, check with a friend or family member for a case. On the earlier models, the cases were interchangeable, so if only the case was damaged, you may find luck getting a new case at a lower cost.