I use Cushing's Perfection Dyes. One 1/3 oz. packet will dye 1 lb. of materials dry weight so a little goes a long way. I've been using it for about 7 or 8 years now,with some trial an error along the way. All that you need is a pot,water,white vinegar and the dye of your choice. Use just enough water to fully submerge the materials you intend to dye,no need to fill the pot unless you are dyeing a lot of one color. I use a stainless steel pot because I can get a decent look at the color of the dye as I'm mixing,add a little at a time to boiling water to get the shade you like,add the vinegar. The vinegar sets the dye in whatever you are dyeing.I use strung white marabou to check the color to make sure it's what I want before adding the full amount of material I want to dye.. Always presoak materials in warm water with a mild detergent,then I rinse and repeat. I wash and rinse materials twice before I add them to the pot to make sure it's clean. With a neck or saddle I'll put it directly in the pot,with smaller items like loose feathers or hackle I have a small stainless steel strainer that I put the small stuff in then add to the pot. I use tongs to work the dye deeper in the neck or saddle turning the saddle continuously. The color of the materials will be darker when wet then lighten a tad after it dries. It's better to be on the lighter than darker side because if it's to light you can dye it darker but if it's to dark you can't lighten it up. Rinse first in warm water then cold and it should be set. Let it drain and drip for a little while and once it stops dripping I usually hang it in front of a fan with hemos and let it air dry. The smaller feathers and furs I put on paper towels and lunch trays,spread out and let dry. I buy my dye on ebay. Only one person sells the Cushing's and the cost is $17.xx plus shipping for six colors. There's like 70 colors to choose from. I hope this helps, it's not hard and actually is pretty easy if you do it enough. I think I have about 20 colors and you can always mix a couple and make your own custom colors,that get's tricky at times.