Scrape off excess crayon gently with a plastic scraper or old credit card
Rub the mark with a dry microfiber cloth
Apply a small amount of baking soda to a damp cloth and gently rub
Use a magic eraser lightly on the crayon mark
Wipe with warm water and a little dish soap
Try white vinegar on a cloth for stubborn residue
Use a hair dryer on low to soften the crayon, then wipe it away
Apply a small amount of toothpaste to a cloth and rub gently
Clean the area with a damp cloth after removing the crayon
Dry the wall with a clean towel