Oh, gosh, sphinx moth Finn is such a perfect idea! He and Rey being in the same order, potentially the only moths either have ever met-- perfect. He probably wouldn't even know himself to be anything other than an odd bee until someone else pointed it out. All his life in the order knowing he was different and unable to bridge that gap with the other hive morphs, no matter how well he mimicked their behavior or how well he did in the sims or if he kept his head down and followed orders to the letter. They just picked up on it, and bees are so insular that it marked him as an outsider right away. I was torn on the original prompt because Finn being a rogue bee was just inherently sad and a little funny, and then i got stuck on the idea of beetle!Finn to parallel atlas beetle!Phasma. Plus it would work for saving his spine from Kylo's lightsaber. But then where do you put the carapace under the armor...

Ah, gosh though, this neatly ties it together.