Remove the leaves and rinse in cold water. When all the lye is rinsed from the leaves, spread them onto waxed paper. Gently scrape the loose flesh from the leaves using the edge of a spoon or a dull table knife. If you want to bleach the leaves, mix 2 tablespoons bleach to 1 quart water. Soak the leaves for 20 to 60 minutes, depending on the desired effect.
Rinse leaves again, and place flat on paper towels to dry.
To color the leaves, add food coloring to rubbing alcohol and soak the cleaned leaves in the solution. You can also spray-paint the leaves. Same as method 1, except substitute 1 teaspoon washing soda for the lye. Add the leaves and cover. Place the bowl in a sunny location for 2 to 5 weeks.