Walmart's "Get on the Shelf" contest, which saw more than 4,000 inventors and small businesses compete for the chance to get their product into Walmart stores, has wrapped up, and the winners have been announced. They are: HumanKind Water, PlateTopper and SnapIt Eyeglass Repair Kit.  Wait, really? Huh. Well, at least two of the three are ethical companies. HumanKind gives 100 percent of its net profits to organizations that provide access to clean drinking water in underdeveloped communities worldwide. And PlateTopper—a plastic gizmo that covers food on plates, replacing plastic wrap—donates to the anti-bullying campaign Jaylen's Challenge. SnapIt offers no such pretensions, but that also means they'll spend less time talking around their decision to work with retailers as unethical as Walmart. See ads for all three products after the jump.