Besides the students designing and dyeing and sewing Japanese fireman jackets I've been at it myself.
One nameless, grammy-award winning guitarist who dated Taylor Swift and Katie Perry ordered a jacket from me. (If he wears it while he performs in Tokyo next week I will post pictures...)
Instead of a Japanese inspired insignia on the back he asked for the old Grateful Dead electric skullbone logo. I drew it up and cut a stencil on the persimmon tannin paper.
The paste was applied and then dried in the sun.
Then the entire cloth was coated with soot and soy several times to get a dark grey and the black soot was layered on the insignia outline.