I'd get a whole bunch and market them at vet clinics and animal shelters. Ever clinic / shelter has those few clients that go one step over the line from really liking animals to being a 'crazy' cat lady - and this would be the perfect product for them. As for myself, I'll stick with regular hand held brushes for my cats.
p.s. I didn't see a drool guard on that thing, and we humans tend to loose a little saliva when we hold things in out mouths for too long... (ex: when your hands are full of grocery bags so you carry your keys in your teeth because it's just too much effort to make multiple small trips. =I'm very guilty of this= especially in the rain)