To make my own piping so it would match the material i used on my door panels, console, buttons, etc....I just got some of the plastic cord material from the fabric store(the cord i got was like 1/16" thick). Then i cut long strips of the vinyl i'm using about 2" wide and just folded it over the cord. Then you have to make sure you have the right "foot" on the sewing machine so it's flat on the material and raised up enough so the cord can pass by it yet still keep the stitch close to the stitch. The cord just looks like the same stuff that weed wackers use, except its more flexible and forgiving if you accidently stitch through it. Hope this helps.