Guess necessity really is the mother of all invention, and this external hard drive with Super Mario Bros. 3 on the outside is clearly a winner in my (videogaming) books. Etsy seller NES Box was disappointed with the latest purchase of an external drive which had an aesthetically displeasing exterior, which led to some tinkering with an old NES cartridge to fit in the hard drive. The cartridge was amazingly almost a perfect match, allowing the drive to fit in perfectly. Powered by USB, you won’t need any external juice for this puppy. Only one is available for sale in the whole world, so be prepared to fork out $180 if you want one.