Even though I have a number of border punches, I had to have this scalloped die from Amuse Studio. It's six and a half inches long, so you can cut a strip that is as wide as your card, even a larger card, and even cut offset scallops like these.
Amusing Challenges and these others:
Catered Crop - ribbon
Crafty Catz - punches and dies
Hotshot Craft - masculine
My Creative Time - no electronic die cuts
Pals Paper Arts - color