I just created one for 100% Damage Reduction, the first version. I haven't done the 2nd variant, because I'm not sure how to set up a prefab like that to do the "levels" properly. Would I need to just have each level set up(i.e., the hard way)?
Anyway, this seems like a worthwhile undertaking. If I can get them all set up, perhaps I'll post them here if anyone is interested.