This is a super easy project. I bought two bags of cheap buttons at Wal-mart and attached them to the Styrofoam ball with stickpins. I wished I had more variety in the sizes and colors of the buttons, so if you had some lying around in a jar at home, that would probably work even better. I used a T-pin to attach some red and green ribbon to the top of the ball because the weight of the ball was too much for a regular pin. The T-pin solved the problem and kept the ribbon from pulling free of the ball.