air hammer, and small bowls, but not at the same time.
Here's the air hammer and the poor bit of copper i tried it on. It had a rudimentary flat chisel in it , far to small and far to rough for what i might need but it gave me the idea. He originally used it for making 200 large copper nails. He repairs wooden boats etc. Impressions are, it not as noisy as i expected, it jumps like a very jumpy thing, its stoke is very short and its easy to work harden the copper to the point of tearing it. Interesting experiment, but hand hammering is where its at!
last one... its hard to get em even this round!