Saya Kuroishime lacquer

[Satsuma]

Hello everyone,

Recently in a training I cracked my koiguchi open due to a bad sayabiki in the turn of ganmen ate. Since I just didn't stop to see what happen, and finished the kata, I lost a part of the broken koiguchi. Next to the koiguchi being broken on the june side, there was also some wood that cracked open over about an inch further in the saya on the june side. ( picture should be below). The iaito I'm using is a kurin stainless steel from nine circles.

Since then I've made some repairs to it, first took out the loose wood parts, removed any splinters and then glued all of it together with fast set wood glue. I replaced the lost piece of buffalo horn by a dental material used for temporary bridges and crowns (I'm a dental student that's why I used this material). Then I placed a copper ring over the koiguchi, making sure to enclose the buffalo horn and some of the wood. (see picture below). Now I've sanded the saya up until the kurigata and would like to lacquer the part between the koiguchi and the kurigata.

Now here's the problem, I would like to match the lacquer that's already on the saya, it looks like it's a kuroishime lacquer with some sort of granite stone pattern in it. Does anyone has any idea of how it's done? any help/ideas would be great!

[DCPan]

Lacquer and salt...once it dries, the removal of salt result in the texture (or so I hear).

[chidokan]

why not do something different? I wrap using rattan, but also quite like the rayskin effects here...
http://www.japanese-swords.com/pages/projects.htm