You design a machine with a conveyor belt that is similar to a car wash, but works for dogs. There are businesses which have come up to allow you to wash your own dog (and that’s a great idea). This would take things a step further and automate the whole washing process. You’d need to develop a system that was gentle (and most likely still monitored by a human), but it’d be much less manual effort than actually washing each dog.
Franchise it. Make millions.
Known Implementations: None. 🙂