Here are two videos of Barry teaching workshops that show what can be done using his method. The lines in the second video are explained mostly in the first, so you see how to use the process. The first video is about 26 minutes long but very well worth the watch (I've watched it several times, learning stuff each time).
If you have less patience, watch the second video first, then the first one.
Video 1
Video 2
Bookmarks