[Unclenick]

Sounds like a fun project. For convenience of carry weight, you could run the projectiles out of aluminum bar stock and have them anodized any color you wanted. The bases could be bored for some filler lead if it turned out you didn't like the lack of heft after all. You could also roll stamp them: "CAUTION! Not for opening beer with less than 4.5% alcohol by volume", or your own creative slogan for helping get people into trouble. Perhaps some pithy philosophy would be in order. "Confucius says: He who can read these words without losing focus needs another beer." That's not too clever, but another campfire or two and you will undoubtedly come up with something better.