Lay wax paper out evenly on to a flat surface. Put butter, milk and sugar together in to a large pot. Bring the mixture to a boil over medium heat. Boil the mixture for 1 ½ minutes. Remove the mixture from the heat. Turn the stove off. Add peanut butter, oatmeal, cocoa powder, walnuts, raisins and coconut to the mixture. Stir the mixture until blended well. Drop the mixture from spoonfuls on to the wax paper. Allow the cookies to cool completely and serve.