Ditto is a new tangle pattern that I first introduced a few weeks ago. Since then I've refined a few things. I simplified the steps AND I made a video. The video is up on You Tube. You can find it by going to You Tube and searching for 'Sue Jacobs Ditto' or you can follow this link you tube Ditto video
It's also shown at the bottom of this post.
I redid my instructions because I wanted to stay true to the basics of Zentangle philosophy. That is, no grids or penciled guidelines needed. I also wanted to stress that you can draw it by combining two of the 5 basic shapes that are part of tangle patterns. Rick and Maria, the founders, show in their book that those shapes are 1) the dot, 2) a straight line, 3) a curved line, 4) a S shaped line, and 5) an orb. Ditto uses the curved line and the S shaped line.