In the mid '80s, there was a magazine called "Ninja" and for something like $200-$300 you could buy a ninja suit that was coated in diamond dust. It probably didn't work worth a shit, but just a memory that popped up from thinking about adversarial clothing.
That's funny as fuck. If you can find the AD, I will personally go in on a LLC with you to produce it. Modern age snake oil would sell hundreds of millions at a minimum. People are fucking stupid. May as well make money on the retards.
I know a few that smoked diamond dust.