Yes You Can Believe - Motivational Bicycle Sticker.
Although these have been designed for top tube or stems on bicycles, they can be used for various sports and applications. They offer a little fun and motivation at the same time. When you’re in the ‘red’ and glance down at the sticker it will ideally help you dig even harder or even raise a wild eyed smile!
Please read the advert and check the size matches your requirements before you purchase. There is a 10mm square grid in the product image to enable you to do this.