Check out 3 Rivers catalog and get a packet of dye and redye them. This would also take care of the smell, as you are putting them in nearly boiling water for about 1 minute. I make all my feathers from turkeys I have shot. I dye them then let them dry. Works good, just DO NOT spill any of the dye ( mixed in water) on anything. Might want to do it out in your shop, your wife will kill you if you spill any in the house. Use a old roaster pan for heating the mix and dying that has an enamel coating. A small packet makes one gallon of dye. Several colors to choose from.