Greatest Invention Ever

If I had invented te greatest invention ever, it'd be really awesome. The invention woul supply he user with an endless supply of pistachios, macadamian nuts, and cookies. I suppose if it could all that, it would be able to generate healthy food as well, then I could put a stop to world hunger. My second choice for my best invention would be creating a floating island. It'd be suspended in the air by some kind of repulsar lifts. It'd float around unless the giant anchor it'd have was dropped.