I am having the best time drawing Henry with his fetching ears. These are both a big, fat, water soluble graphite crayon with some water wash. It's a super simple combination. All you need is the crayon (less that $2 at my local The Art Center store) and a water brush pen that has water in the reservoir. You just squeeze a bit and push out a little water through the brush. No open cups needed. It's genius. For watercolor, I take more time and get out a really fun brush when I have the space and time, but for something like this, the water brush is perfect. I'm keeping supplies in easy reach on the coffee table so I can grab them when Henry is settled with me on the couch. Drawings dogs 101 from David Hockney is having the art supplies stocked in their usual places so you can sketch without disturbing them. Perfect advice.