I have just finished my Koi fish and want to keep going up my arm. I have a few things that are semi small tattoos on a few spots up my arm already. I want to try and keep it as much of a Japanese theme as I honestly can. I wanted ideas of Japanese things that aren't common, I have already the koi so I figured I want to get some things that are not common japenese tattoos to add to my future sleeve. Let me know your ideas, thanks!