Mix 2 teaspoons Rit Dye(or) Kool Aid, 1 teaspoon vinegar ,and a pinch of salt in 3/4 cup of warm water. Make sure the container is not metal. I use a mason jar.
Add feathers and make sure they are covered in liquid.
Put the container in the microwave for 2 minutes. Stir, and repeat for 2 more minutes. Let sit or 10 minutes.
Remove feathers, rinse under cold water , and blow dry. That's it!