Food and Drink How To Skin A Watermelon September 5, 2015 / Here’s a way to make a real positive impression on any holiday guests this Labor Day weekend. Mark Rober, a former NASA engineer, will demonstrate that you can magically skin a watermelon and promises it will take you about 10 minutes. Related posts: Why would someone pour molten aluminum into a watermelon? Busy? Great … We’ve been busy too!