Here are a couple of quick snaps of a WIP which sounds similar to what you are working on. Rather than using scallops, I decided to go with a tie-up flounce. I just tossed it over the quilt frame to get the shots - the stripes are the border, the outer most pink will be the backing. It's in the to be quilted pile. Getting the gathers around the corners was a bit of a challenge, mathematically, but it worked out OK. I have no intended use for the quilt when it is finished, just something fun to make. I'm sure the right occasion will come along.