Last weekend, at a meeting of Artrageous Quilters at Cotton Fields Quilt shop, I got to try out ice dyeing with silk scarves and Procion dye.
I tied off little bundles on both ends of the scarf on the left. I soaked it, then placed it in a colander suspended over a bucket (more high tech!) The scarf on the right was pre-treated, then dropped in the bottom of the bucket. Ice and dye were added on top like before, the scarf on the bottom was darkest, after it absorbed all of the excess dye.
More baby socks, of course.