What were the Halloween costumes that Leslie and Ann used in Parks & Rec episode 'Halloween Surprise'?

In the Parks and Recreation episode 'Halloween Surprise' (season 5, episode 5), Leslie and Ann don two distinctive costumes (see screen grabs), Is Leslie supposed to be from some wartime effort poster or Lucille Ball, and who is Ann supposed to represent as she looks like an Olympic Gold medalist?

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• Previous story identification - Cat-like people who can fly to space on crosses. Telekinetic powers. Cold world. Construct mirrors in space to warm planet. Probably 70's or 80's