I love the way the dense stippling stitch (at least it's dense for me!) uniformly covers the backing and the applique, sometimes pushing the raw edge back, and sometimes tacking it down. And I can't wait to see how it comes out of the wash.
To make the pattern I photographed a neighborhood tree, simplified the photo and generated a silhouette, printed it on several pages and pinned the paper to the two layers of uncut fabric.
I sewed loosely several times around the drawing through the paper and both layers of fabric, then pulled off the now-perforated paper and cut away the natural muslin leaving about 1/8-inch of raw edge. I'm counting on the bits of paper still stuck in the tightest corners to wash out.