Knockie Cosplay offers this beautifully executed mashup of Princess Leia in her slave outfit from Return of the Jedi and Chibiusa from Sailor Moon. She is accompanied by the cat Luna-P, now transformed into a fully operational Death Star.
You can see more cosplay photos of Knockie at her Instagram page, including pictures of her with a Jedi Sailor Moon cosplayer.
...Close though... sort of.