I decided to machine quilt the black appliqué, which had been in the back of my mind anyway. I tried it with Sulky Invisible, however, the stitching had too much shine for this small piece. So I tested out black thread, thinking I would just go along the edges to keep it "in the ditch" and rather discreet.
Discreet? Me? Ha!
As I stitched I realized that I really did like the possibilities of the stitched black line--I had fun!