Considering that Halloween has split into being a holiday for kids to get candy and a holiday for adults to put on sexually suggestive outfits and get hammered, I can fully see Charon getting into the latter spirit with something a little naughty.
To that end, let's see her in one of those Sexy Copy uniforms they always have in the adults section of the costume shop. Considering her run-in with the law, it would be more than a tad ironic.

