That’s a wild idea—picture a balloon bursting and the paint splashing like a river of quartz under the city. I could load a balloon with a mix of my paint and a bit of that “vein” pigment, then toss it over a subway tunnel, let it explode and the colors spill like a mineral seam. We could tag the spot with a quick sketch of the vein pattern, turning the prank into a quick geological pop‑up. What do you say we map a few hot spots and set the first paint‑vein in motion?