Copper shield

I find it kind of lame that the only shield in Minecraft is made of iron when the game has another metal that could also be used. My idea would be a copper shield that would have a shorter lifespan than an iron one. However, to make it cooler and not just a weak shield, it could be one of those round Viking shields. (It would have a smaller radius of protection than an iron shield and would be much better at defending against projectiles.) You could also add a new enchantment "ricochet" which would cause all projectiles to be deflected when defending. (and also because of its round shape it could be used as decoration)