Aurora issued five knights: silver, red, blue, black and gold. There was a prototype for a sixth knight, a green one, that never went into production. The guy who owns the prototype will not allow it to be scanned. Its kind of his "precious", apparently (he has turned down 100K). Anyway, I took a silver knight plus a gold knight's helmet and tried to make an ersatz green knight. It turned out ok - not fabulous, but ok.