A Rolling Project

I pushed that brass coin from the couch seam across the floorboards. It wobbled, so I gave it another steady tap with my bill to guide it toward the base of the bookcase. A fallen plastic ruler lay tilted against a stack of magazines. With a firm shove of my flipper, I nudged the coin up the ruler's slight slope. It tipped smoothly over the upper edge, rolled down into an empty ceramic coaster with a clear, sharp clink, and spun to a halt. It worked nicely.