Kurtis posted this tutorial on his blog. You have to check it out!
While you are there, be sure to spend some time and look around. He creates the most beautiful uncluttered cards I've ever seen. I absolutely love his style- he has the most amazing way of making even very basic cards look striking, because of all the thought he puts into them. Sometimes it is just the tiniest of details that can create interest on a card.
If you try this technique with the Copics, I would love to see your creation!