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We have now joined the ranks of people with the dreaded problem of removing melted crayon from the clothes dryer. After my brief crying spell, we were able to devise a removal plan based on other people's suggestions on ThriftyFun.
Okay I've just experienced the crayon in the dryer and tried a few of the ones mentioned, but I remembered we just brought a product called Spray Nine. It is for cleaning marina items (environmentally friendly) and does a great job.
Crayons can leave a very hard thing to clean up, unless, you have WD-40 on hand. All you have to do is spray a little on and it melts the crayon so all you have to do is wipe off!
Soft Scrub works well. Just a bit on a sponge scrubs it off easily. Rinse and sponge periodically and reapply more soft scrub until initial coat is up.