I started by picking a print fabric that matched the colors of their room. I wanted trim to hang down onto the black part of the curtain. I picked this plastic circle and bead trim.
You can sew the fabric and trim directly onto the panels. Or if your lazy like me just iron the rough edges of the fabric down and hot glue to the panel. Repeat by hot glueing the trim the the print fabric. That's it, it's super quick and you get a unique look that can't be found in the stores.