Curling satin ribbon is extremely easy to do. In only a couple of minutes, you can make beautiful curls of ribbon to use in any way you desire.
Plug in your curling iron. Set it to low heat and wait for it to warm up.
Wrap the ribbon around the curling iron, exactly the way you would when curling hair. Wait a short while and then remove the ribbon.
Your ribbon will now be curled. If you find that it loses its curl after a while, apply hairspray to set the curls.
If you want to straighten your ribbon again, for whatever reason, use a clothes iron to smooth it out.