You can use your Stampin' Up! square punches to make zigzag designs!!! I used my 1/4" square punch on this card to create the zigzag strip. See below for some photos showing how I did this.
I used Bashful Blue as my card base, Purely Pomegranate, Certainly Celery and the Cutie Pie Designer Paper for the top border. I stamped the butterflies from Priceless in So Saffron, Purely Pomegranate and Certainly Celery and cut them out. I bent their wings up and attached them to the card with the adhesive on their bodies to give them dimension.
How to make the Zigzags – I used the 3/4" Square Punch in these two photos. You line up the corners of the punch with the edge of the cardstock and punch out a triangle. Continue doing this all along the edge of the cardstock to create the zigzag design in various sizes.
This photo shows me using the 1/4" Square Punch in the same manner to make the zigzag pattern on the above greeting card.
Hope this makes sense, if not, leave me a comment and I will try to explain it a little better.
Thanks for looking!!!