Our intent is to give these as gifts - maybe stuck to an actual six pack? Hmmm???
We started by collecting bottlecaps of various kinds - which wasn't all that difficult given our liquid consumption rate :)
We experimented with quite a few different ways to flatter the bottle caps - it was worth it, because it revealed a lot of different looks for the caps. A rubber mallot straight to the top of the used bottle caps flattened out the sharp bottoms while curving the tops in (served to remove dents and gave a rather handsome concavity to it). A large soup spoon, hammered with curved side to the bottom teeth of the bottle cap, gave us a fanned out almost flower-like look (2nd pic).