Reaper Chronoscope's Sister Maria - a big nun with a big revolver. There are nuns in the post-apocalyptic future, aren't there?
Otherwise, I second the suggestion for the Mad Puppet guy - that's the guy in his bathrobe, with a cigar in his mouth, isn't it? I've been meaning to pick that mini up for a long time. Until then, there's always a nun with a big gun...