1. I am take a small piece of white Ric-Rack ribbon and paint him with regular fabric paint.
I choose blue and yellow for contrast.
2. After paint was dry a fixed it with hot iron.
3. I fold ribbon on white (unpainted) side and and do a few small stitches according to red line. ( I did them with red thread only for contrast picture).
4. I opened Ric-Rack ribbon on color side. Pressed it and stitched a small eye.
5. I sewed it on the fabric with small like a fin stitches.
6. You can do an eye with a bead or do any other stitches for fin. You can stitch other tail.
Other Ric-Rack fish.