How to Remove Crayons from Walls July 23, 2015meetsunshine Leave a comment What you’ll need: White toothpaste Damp washcloth 1. Using your fingers, apply the toothpaste to the crayon colored wall. 2. Gently rub with damp washcloth until all crayon traces are gone. before and after And voila! The crayon traces are gone. Hope this helps.