Step One-Flatten it like a pancake.
Step Two-Color it with whatever design and color you want.
Make sure that you do something creative!
Change your markers until you have colored the entire filter.
Step Three-Place them on a plastic bag to protect the table.
Step Four-Spray those suckers until they're wet.
Step Five- After you have finished spraying them, let them dry, and then you will have something great to hang on your wall!