The third annual Puma Open in Miami in 2009 included what was known as the Golf Pong hole. The activity was akin to the drinking game beer pong, and players chipped golf balls into six large red barrels.
This ball drop looks like an inexpensive way for a fundraiser that could make some big bucks. Golf balls, tennis balls, ping pong balls, etc. Lots of options. DIY fundraiser ideas color instead of numbers, etc.