Although we'd like to think that accidents don't happen, let's face it, they do. Most children will draw on the wall at some point in time and if you're out of Magic Erasers, try using this kitchen condiment to clean things up instead.
The fine folks over at This Old House share a little knowledge when it comes to crayon removal. Instead of using harsh sponges, let a little mayo do the work for you. Spread on whatever brand happens to reside in your refrigerator (homemade works fine too) and allow to sit for several minutes.
Wipe off (and and it's probably safe to say you should wipe your wall down with a general cleaner afterwards). The crayon is gone without any hard scrubbing or swearing, and you can go back to your regularly scheduled life — or make a trip to Target to buy an artist's easel for your little one!
• Read More: Erase Crayon From Walls from This Old House
(Image: Laura Moss for This Old House)

White Enamel Flatwa...
I teach art at a museum, and I'm always looking for a way to remove things Ike crayon and paint from tables, chairs, clothes... I wouldnt have expected to find a tip like this *here* but thanks! We'll definitely give this a try!
There is a product by Arm & Hammer called Degreaser. It's hard to find, (only on Ebay now as far as I know), but it will clean anything. Spray in on, and whatever the problem is will slide off. It is supposed to be plant based. I cleaned an old range vent cover in a rental house, and the years of grease literally slid off. I couldn't believe it.
Are you concerned at all about the oils in the mayo leaving a mark on the wall??? Grease marks can be IMPOSSIBLE to get out.
Wouldn't the mayo leave greasy spots on walls that aren't painted with a sheen/gloss like bathroom and kitchen paints? I've been in plenty of homes where the paint is flat and this would just leave more of a mess.
washable crayons, folks!
Putting a little baking soda on a wet sponge and gently scrubbing does a great job of removing almost anything (especially crayon!) from walls or textured surfaces.
I've heard that rubbing with a piece of bread works too. I think mayo would leave behind a greasy mess. And yes, washable crayons are the only type allowed in our house!
A Magic Eraser can sure work some magic..
mr. clean magic sponge
magic eraser *facepalm*
sorry
This doesn't seem to make any sense. Of course mayo would grease stains. don't do this.
I presume, it's the oil in the mayo that does the job.
Oil (or any other fat) is quite helpful to get rid of nasty stuff like streaks from rubber soles on wooden floors or residues from sticky labels.
Of course the surface it is used on should be nonabsorbant.
I work at a preschool and have found that a dry paper towel works quite well to rub crayon marks off of tables, walls, etc. Of course, magic eraser works great too.
Try a regular eraser, too.