Black on the top and white on the bottom? Or vice-versa? I'd be happy to buy or hunt down any blackwhite masks Lego produces, although I don't know why they would produce one - the audience for that seems awfully limited. What we really need is a trans-purple eyestalk, and then we can MoC a Makuta, I think. Yeah, I don't think many people would go for them, as well. Transparent masks probably have a much bigger audience, which I guess could be proven by how many official masks have been co-injected lately. Also, a trans-purple eye-stalk would be nice, indeed.