I wonder if we will see this in riots. Black paint mixed with grease/oil in balloons. Seems effective.
I'd be very cautious about people advocating street violence, even if it's ostensibly non-lethal. It sounds like an effective tactic but what about the context (one of these Christmas market protests in Europe we've been seeing lately or some kind of forced vaccination patrol?) and what is the strategy? For places like Australia it's hard to see how you civil-disobedience and street-fight your way out of a largely done deal. The test will come with the subsequent boosters and the level of compliance from the sheep. Maybe they'll loosen things up once they realize the double and triple jabbed aren't going for a fourth or fifth helping, but I don't see them taking it easy on the totally unjabbed. Cops will use lethal force when they feel threatened, even if it isn't legally justified. I wouldn't want to be in their line of fire, testing their limits with black tar projectiles to see which one snaps first.