How do you get crayon out of carpet?
First try freezing it with ice-cubes in a bag then trying to scrape as much off as possible with a blunt knife.
Try turps or dry-cleaning fluid and sponge and blot (test first).
Cleaners with citrus based oils also help.
I have used a combination of the above to remove a large black melted crayon stain from cream carpet - even if I had to work at it for a while!