Fill 3/4 of a large pot with water and add 5 tablespoons of turmeric powder, which is often used in cooking but is also a natural fabric dye. Put it to boil on medium heat. After an hour of boiling on low heat, take the large pot off the heat. Let it cool down for 10-15 minutes. Then take out the pillow case and rinse it in cold water until you get rid of all the excess dye and wring it out.