Shannon Dougherty is absolutely giddy that, on a pole outside the Fishtown bar she owns, there’s a small metal box that’s the latest tool in her personal war on litter.  “There are so many problems in the world right now that are so complicated,” said Dougherty, the owner of Cedar Point Bar & Kitchen. “This just seems like an easy one to fix. The 19-inch rectangular receptacle is called a TerraCycle “zero waste” box. Installed in February by the Fishtown Neighbors Association, the box can hold hundreds of cigarette butts before they’re shipped to New Jersey, where they will be processed and recycled into such things as ashtrays, fence posts, industrial supplies, and park benches.