This British franchisor developed a vending style golf club cleaning machine.
My initial reaction was that it was terrible concept for myriad of reasons, but I can see it possibly working as long as competitive pricing pressure is nearly nonexistent. It could provide low-end golf courses with a small but riskless alternative revenue stream.
The Sonic Golf Club Cleaning Machine cleans a full set of golf clubs in just 2 minutes. It can clean both the heads and grips of the club to an original condition. The grips are restored to a tacky finish and the grooves on the clubs face are clean thus improving the amount of ball control.