Loved the article, loved this thread.
I once saw a video by a guest on Nancy Zieman's show. They were making pinwheels. Nancy had the four squares and was trying to show how to lay them out to make a pinwheel. She turned them this way and that, and couldn't find the right way. My fingers were itching to get in there and turn them around for her. Finally she just picked up the finished pinwheel and showed that. So funny!