Summer is not complete without a heavy dose of watermelon. The fruit can practically quench your thirst all on its own. And, of course, it is a welcome addition to a number of cocktails, from to Mojitos to Swizzles. But we’re fans of using the whole watermelon here. That means one thing: It’s time to make a watermelon keg. The process is simple—and not all that different than making a pumpkin keg—but it makes for a showpiece that completes any summer party.