If you are looking just for a Drunkard's path to get a circular look I would definitely so with the Elisa's Back Porch products. Her curves rulers are great and not nearly as expensive as Sara Moe's. She also explained to me one time at a quilt show that they are a degree off and that makes them easier to sew, although they still look like a circle. She has intructions with the ruler and I believe some videos out on her website. They are easy to put together, no snipping the circular part just iron to one side or the other. I have had great success with these rulers and would recommend them -No I am associated with them just giving my opinion.