I have been doodling a bit - and all of a sudden it became a biscornu pattern.
I added a little narrow band as well, this way you can choose whether you want to sew it together as a biscornu or as a small pillow with a side.
I hope you like it. Happy stitching.
Edit: do you want to see how it looks stitched? Here it is, in this post. Just scroll down.