I think that June Taylor ruler may be the one I have. There's a scalloped edge side and a wavy side, and I use the wavy side a lot. After quilting, I start in the middle and draw the waves before cutting them. This allows me to shift a little so that the edges are pointy or wavy, depending on my whim. I don't have to use bias binding if I'm careful when sewing the binding down on the top, and I also don't have to miter the edges. Looks graceful and elegant.