I love the clearance fabric bin at Joann's. I picked up some bleached muslin, Kona PFD, black Kona, cotton buckram, etc. from the clearance bin. I washed them, then soaked them in soda ash water. The black Kona, I tied up with rubber bands and put it in a color remover solution. It was then washed, then soaked in soda ash water.
Here are my dye "buckets". The two round pots have two layers of fabric in them, the one on the tray on the right only has one. I do have strainers/pasta inserts in the pots to prevent the fabric from sitting in the melted snow water. The tray on the right is a broiler tray (for craft use only!) that has a drain pan.
I sprinkled my dye powders on directly, but liquid Procion dyes could be used as well. I typically let the snow melt completely before washing out my fabrics. I let these sit overnight.
Black Kona, color partially removed, then snow dyed.
My Favorite! ROCL Renaissance
I think the orange/blue Kona may need another round!