I had an idea last week - why not mix cray pas with watercolor? Oil and water could create unexpected and hopefully very cool results.
So, I tried drawing different images and lines on different kinds of paper and then painted watercolor on to it. The oily lines repelled the wet paint and retained the integrity of the lines. Dig it!
This concept allows for some really free design and color applications. Just getting started with the idea so the below are basically tests and experiments, but I have to say, I see endless possibilities!