Wings on Smallclothes that share textures with the Angel Wings fashion accessory, with two options for EX bones (e.g. https://imgur.com/a/Rq4Z3sr), each with i think advantages and disadvantages. Unfortunately my knowledge of VFXEditor is rudimentary at best, so the physics could probably be (way) better...
Feel free to use or modify these as you see fit (especially if you're better at VFXEditor than i am...)