[tkwetzel]

You could place two large balls on the stationary goals, because the pvc is of two different lengths. One ball in one of those goals will stick out, but not as far as the 8" tall pvc, so you could support a second and possibly third on the first tellow ball and the 8" tall pvc. However, a capping ball may not be supported by a large ball, so it would not count for extra points.