My Green Dragon Skin swatch was just the right size to make a stuffed fish. My cats absolutely adore it! It was pretty simple to make; just cut out two fish shapes, place right sides together, and sew all the way around leaving a small gap. Flip the fish right side out, stuff, and sew closed. I added button eyes, and "quilted" on a few details. That's it.
Note: if you are making a cat toy be sure that buttons are sewn on very securely, and even then keep an eye on the buttons since hard play can loosen them.