Cigarette butts are one of the most commonly littered items, but inventor Ken Beckstead hopes to change that with his Butts Only Box®. The boxes have a unique design that makes it easy to throw butts in on the go — on roads or trails, for example. A grated opening also keeps human hands and animals out. By itself, one cigarette butt may not be a significant problem, but an estimated 770 million kg (1.7 billion lb) of cigarette butts wind up in waterbodies worldwide, according to the American Littoral Society.  Cigarettes are not biodegradable and can harbor chemicals that are toxic in high concentrations. Wildlife can also mistake butts for food.