Recently had a request for a Myabi-themed build; I'd never played Zenless Zone Zero, but after some research this was the result.
We avoided most of the current pricing insanity, as parts were purchased just before it all started. We also caught some good sales and a Microcenter bundle.
My favorite part was making Myabi's sword, Tailless. I 3D printed the main body of the sword (file linked below) with a Creality K1C printer. The gold parts on the side are 2mm acylic, and the rectangular loop on the end is a bent paperclip. After painting, the handle was wrapped with strips of Coban (a medical tape of sorts).
I made the sleeved PSU cables, and most other fan and case wires were cut/shortened to clean up the cable management. Thematically there are numerous mods, but I try to keep them subtle and cohesive so they're not too obvious. Diffused RGB lighting along the bottom helps illuminate things.
For the animations on the LCD screens, I used in-game footage of idle animations. They were edited, enhanced, and otherwise re-formatted to fit.