To remove crayon stains that have been melted onto clothing in the dryer, place the stained surface down on pad of paper towels, spray with WD-40, let stand a few minutes, turn fabric over and spray the other side.
Apply liquid dishwashing detergent and work into the stained area, replacing towelling as it absorbs the stain.
Wash in hottest water possible with laundry detergent and bleach for about 12 minutes (use heavy soiled setting if there is no minute timer on your machine) and rinse in warm water.
Special Note:Heat-Set Stains-Clean the drum of your dryer to remove any remaining wax residue. Spray a soft cloth with WD-40, and wipe the drum. Run a load of dry rags through a drying cycle to ensure that your drum is clean.