When I make copper weapons, they get sold as bronze weapons. Bronze is supposed to be a mixture of copper and tin. Maybe you can replace the tin ingots with bronze ingots instead. Also, I'd like to be able to purchase ores and smelt them myself. I'd also like to be able to smith my own grips and guards. Maybe in the future, you can add enchanting. The way it could work is you could smith some magical gems into your weapons. Other than gems, you could pay a wizard to imbue different quality enchantments into your stuff.