Hello! I plan on having Jiro join the Fourth soon... ish, but because she's a Simulacrum, I thought I'd ask ahead of time about what I could possibly do for her cybernetic body mod!
Since she's already cybernetic and all.

So I'm just gonna toss a brief list of ideas I had at you guys for yes/no-ing:

1. A tail similar to the one Sora also got for joining? No use aside from expression and aesthetics, I just think it'd be cute. It'd be a big clunky outlet plug too, like Xurkitree.

2. Aesthetic only boosters? Like, little jets on her back or her legs that she can turn on but don't do anything other than look cool, Buzz Lightyear style. I figure they wouldn't put out any heat, either; they'd really just be parts for showing off and looking neat.

3. High tech looking floaty bits? Like glowing holograms or (aesthetically) electrified crystals floating around her wrists/ankles and/or the ends of her cables. The holograms would probably be either flickering squares or music notes because I'm a sucker for themes.
(It'd be neat if these could make cute little pings and stuff too, but y'know.)

4. Antennae with harmless electric arcs jumping between them? This one feels very "yeah, duh, that's fine", but never hurts to make sure.