OK, so I don't have the book. I have looked and read every thing posted about OBWs. I can't even look at fabric and see the "repeats" or whatever to make the hex design. Suzi, I don't have a dog kennel - mine is go to the garden - but I've already been out there this morning, so am going to go try the 3-D pinwheels. My brain doesn't comprehend complications. And OBW is definitely complicated.