Most of my work is done with markers. I thought it would be fun for a change to try something new, so I used crayons to add some color to this graphic recording. This was an experiment done with a Ted Talk, not live with a client! And I'm very glad I experimented first.

Crayons look great in person and they're easy to use, but as you can see, they don't photograph as well as markers. This image is not "cleaned up", meaning the background is evenly white. With the background evenly white, a lot of the crayon disappears. This doesn't happen so much with markers. If you just want the actual physical graphic recording and no digital images of it, then crayons might work for you.