Okay, so I was shopping at a scrapbook store and noticed they had corrugated sheets of cardboard, but I thought they were pricey. Well, I decided, why not use what I have sitting at home in my recycling area....YEP! THE STAMPIN' UP! boxes....I sat down one evening for half and hour and just tore them down to get what I wanted....then I came in and immediatley had to try and run it through the Big Shot to see if it "squished" it, and NOPE, not a squish at all. And yes, I used my favorite die, Fun Flowers! Enjoy!