There is a lot of unused muraling fodder in this city.
Though it would be a challenge to put together, it would be possible to coordinate actions between mural artists and local business owners to mural their buildings.
If business owners were worried about a political message polarizing their clientele or drawing aggression to their establishment, ... the mural could be non-political, but educational to quality ways of life.
If someone does want to have a political message, ... it could be done in a way that didn't leave anyone open for a libel suit.
One way or another this could be both an excellent way for artistic types to express their hope for a future social order that takes better care of it's people, and for some outreach to the local business community to be involved with enacting a new vision of life.
Just an idea.