Cut two circles the size you want your toy to be. I used a machine to do a quick face, you could save the face till you're finished and hand embroider the face.
Place circles right sides together, then pin the ribbons all around, make sure they are all tucked into the inside of the circles.
If using a diaper or fabric with a loose weave, use a zigzag stitch to stitch all around, leave one ribbon UNSTITCHED.
Turn right side out, fill with fiberfill, and pin the loose ribbon into place. Hand stitch it closed, embroider the face (if not using a machine) and there you have it!