I once had an idea to enhance range safety. When you saw somebody doing something gooberish at the range, you would offer them a free hat or t-shirt that said "I'm A Moron! Watch My Muzzle!"
The plan fizzled because, despite being free, nobody wanted the merchandise.
Now Taurus has figured out a way to charge hundreds of dollars for essentially the same thing, a big, shiny goober indicator, and people will gobble them up like mushrooms at a Phish concert.
(H/T to Unc.)