What if Chainmail Armour was only obtainable in Dungeon Chests not crafted like my original post? I know it can be crafted in SMP if your an Admin or Op (Im not sure if they mean the same), but I think Chainmail should be possible to obtain in singleplayer, without hacks or mods.
even so it in the games programing and should be able to be used with out hacking
Click for penguins in minecraft!