If you go to ebay and do a search with the terms copper bullion you'll see there are now a few people 'minting' their own copper bullion bars. There was one guy doing it for awhile, but there are at least 3 now. I wouldn't mind having some of these, but they always end way above spot price, and shipping is ridiculous.
I have been trying to find a place around here that will sell me copper flat bar, but haven't had any luck so far.