Yeah, apparently sewing isn't the only talent of everyone's favorite Quincy.
Disclaimer: I am not a professional hairdresser, nor had I received any formal training so follow my advice at your own risk! This is just what I've learned over years of cosplaying, making mistakes and learning from them.
The wig used was a monotop (no artificial scalp) wig with synthetic fibers. We got it from a local wig seller; they don't do international shipping I'm afraid.
More photos of the finished wig:
The Will of Fire [link]
After Time [link]
Konoha Gakuen: Detention [link]