Greetings Brothers and Sisters, 9 here.
In order to not bury the point, I'll dive right in.
Over the last few weeks, after a run-in with multiple assailants (and three broken ribs later) I started thinking about crowd control. I thought about the pepper spray grenades on discussion here as well, but decided to stay away from those as my envisioned helmet will offer me no protection from the fall out as well. This lead me down other trains of thought.
Ok, only one, stun grenades. For now, I was thinking a combination of a flash powder core (for the boom and flash!), surrounded by the hardest airsoft pellets you can get.
For now, it is mostly an idea that is swimming through my head, though I have taken some strides towards manufacturing a prototype. What stopped me recently was the attempted car bombing in New York. Making any class of explosive right now is not such a grand idea...
So, Brothers and Sisters, any ideas, criticism, or input?