Create a coupon graphic (Simple Project, Quick Money)

I need the graphical background created to match the coupon in the attached scan, (Blue, bottom of the page)... I need it recreated in a file format that can be edited in GIMP. I need the Font and Font sizes determine and the words placed within the final file. I will be editing this file to customize the coupons as needed. It would be great if I could get several widths. The color in the final product should match the green on [login to view URL] in the header.