How do I clean crayon marks on plastic desks and chairs?
Take a small piece of sandpaper and gently rub the crayon stains to remove them.
Take a small piece of cotton cloth and cover it at the stain. Use electric iron to press the cotton cloth. The mark of the crayon under the cotton cloth will be melted. At this time, you can wipe the crayon marks with a duster.
Use the blower at the crayon mark, blow for a minute, and then wipe it with a damp cloth.
