Oh yeah, walnut is a great dye. No need for mordant, too. And everytime I drink nocino (an italian liqueur made with unripe walnuts), I'm wondering what my insides look like, haha!
I made Nocino back in June. Green walnuts kept falling and I said "I wonder what people do with these?" First 2 hits on a search were Nocino and pickled walnuts...I chose the former. :)
