As number 7 we can imagine a pennant and place it in our pictures, wherever we need it. Take an hour-glass for 8. Place it, wherever you need it in your imagination. Parhaps you may want to add the trickle of sand to add a little bit of dynamics to the scene. Number 9 is the most difficult.
Most books recommend the curved body of a snake.
You get a dynamic, vivid scene, when you imagine a fast rolling skittlesball scattering all the 9 pins. For 10, at last, a golf-club for the 1 and a ball for the 0 is found in several books. This image is worth a lot of dynamics too. Your first step First step is memorizing this array of images and fill it with life. The success of this method does not depend on that.