This has been a past time for fire fighters for a great many years. When I was young, they took the heavy duty bouncy balls that we used to play on. There was a built in hoop at the top that the kids could hang onto. It worked perfect to string through the wire. Now, they have built a metal net around a much smaller ball.
Fire department competition. Best 2 out of 3. All the area departments send teams to compete at Kraut N Wurst.