Great idea OneEyedJoe, my friend who is also an ex-dub owns a screen print business, and has just donated his time and materials for free. Any van sized vinyl banner, full colour. (vans are merc sprinter size)
If the van is parked legally, there is nothing that the dubs can do except get a big eyeful. It doesnt even need anyone to man it, maybe just keep an eye on it at a distance. Its passive, plus with a JWfacts blue logo on it, they are programmed to turn their attention toward it. They wont be able to help themselves!! Just think, thousands of them pouring into the hall, getting an eyeful, pouring out the hall to eat lunch, getting an eyeful, pouring out to get on a bus, getting an eyeful. Sat during the snooze fest, getting a minds eyeful. Talking about it on the bus.....you get the pic.