Originally Posted by jagabuwana
Yes I have attempted a stain using salt, rice water (i.e. the water that becomes cloudy after you rinse and soak rice in it) and sulphur, based off some info in previous posts on this forum.
Brushed it into a blade, covered it in cling/saran wrap. In a day it turned as black as squid ink. I freaked out after a bout a day or two thinking it would damage the blade, but it looked promising. I think had I left it, it would have done a better job.