Y'all remember when throwing rotten vegetables (tomatoes) was a thing the public did at politicians that displeased them? (this was shows wonderfully in Tim Burton's Batman Returns (1992))

I'm really glad we're trying to bring that sort of thing back. It is an immediate and visceral way of expressing displeasure and disapproval that costs little to the thrower, (don't yeet your expensive milkshakes, kids. The jerks in suits aren't worth the good stuff) and costs much more proportionally to the targets (they will pay for their dry cleaning at much more expensive cleaners, thus, sending business to workers that could use the income.) Also, don't throw the metal cup. Just the compostable paper cup, with no straw. Including the lid is okay, but only as means of preventing premature detonation. The lid should keep the round fused for impact, thereby minimizing collateral damage to innocent crowds.

A simple act with multiple benefits. Very efficient. Now all we need is an gig-economy app. Call it MlkShakr or something. It will harvest rally times and locations from social media and then find nearby produce and milkshake vendors from which to arm the populace with.