Oval Custom Bumper Sticker. When you make these unique die-cut singles your next giveaway, you'll get a lot of positive feedback from your consumers. Each sticker is contour cut to fit the shape of your design. There will be no additional backing or material around the edges because the backing is cut to the form of your sticker's design. This is an appealing and entertaining approach to market your company in a variety of ways, including postal campaigns and social media.