Step 4Lather Rinse Repeat ;)
iImage Information

Repeat for the remaining sides of your border. You may want to take another popsicle stick and break 1/3 of it off to use the remaining 2/3 section for the short sides of your border, this will give you a proper aspect ratio for your border. When I did it I wasn't that fussy, I knew I could correct the aspect ratio and more in photoshop. In the example below I didn't care that my "short sides" extended past the corners because I knew I would be erasing away the parts I didn't like.