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If you don’t have any lying around the house, you can look for them in a building reuse shop. Rinse a brick and leave it to dry. If you have a very heavy door, you may want to use two bricks for this project. You can use one color or several colors for a more intricate felted pattern. It will tighten as it dries. Place in front of your door when it is completely dry.

Summary:
Find an old brick. Purchase wool roving in colors that match your home décor. Place it on a wire rack to dry completely.