User blog comment:Silver-Haired Seireitou/Fanon Canon Part 2/@comment-1493741-20141121105344/@comment-1493741-20141122190441

I base mine on the idea that all the districts follow a certain theme. Like all 80th Districts are named after trees in certain phases/means (Beaten Tree, New Tree). If a set of Districts doesn't have an established theme for me to follow, I make one up. Hence all of my 45th Districts are sound-based.