Saltwater Brewery, along with New York City-based ad agency We Believers, developed edible six-pack rings made of the wheat and barley remnants left over from making beer. We Believers co-founders Marco Vega and Gustavo Lauria were working on a production shoot. After the crew ate lunch, Lauria looked around and realized how much plastic trash they'd managed to produce. They decided to create a product that would take the responsibility off the consumer by not using any plastic in the first place. They set their sights on six-pack rings. Vega and Lauria connected with Chris Gove ... of Saltwater Brewery. Originally, Lauria had envisioned six-pack rings made of dried seaweed, but the potential environmental impact made that idea untenable. So the trio turned to something Gove had in abundance: wheat and barley remnants. Two months after that fateful ... lunch, they manufactured 500 working prototypes using a 3-D printer and produced and published a video showing off their creation. The next step for the team is to build a hydraulic mold that can handle making 200,000 units a month. At that point, Saltwater Brewery will be able to use the rings on all of the beers they make. We feel truthful about finding a solution to use ways to reduce the carbon footprint, and that's to use byproducts of the beer processing as it exists right now," he said.