I used "Gerry's Birthday" which you can find at Prairie Fairy Designs along with tons of other amazing graphic images. This set imcludes all three of the graphics I used on this card. You can use them all, or use just one at a time.
For this card, I used a 4" by 12" piece of card stock. I used my Martha Stewart Scor Board and scored it at 2", 4", 8" and 10". Now turn your card over and mark it at 6 inches on both the top and bottom. Now you will score your card from the 2" score to the bottom mark Rotate it 180 degrees and do the same thing from the 2" score to the other pencil mark. This will form the diamond shape in the middle of your card. Your diagonal scores will be mountain folds and the verticle scores will be valley folds. By pushing the sides in, the card becomes a four inch square.