Add green food coloring until desired color is obtained.
Mix with the cereal until completely coated.
If using a donut pan or donut maker spray it with cooking spray, then press the mixture into the molds. Carefully use a knife to remove the wreath to a cookie rack.
If using your hands spray them with cooking spray. Then roll the mixture into a ball and carefully flatten on waxed paper, removing the middle for a wreath shape.
Use decorative sprinkles and candy to make holly berries on the wreath.