I was originally thinking we'll create the stencil/outline from images gathered and have the community fill it out. An organized 'block party' to get the neighbors out and to socialize and paint would be awesome as well.
This is a pretty awesome suggestions. A pilot project would be fascinating. My guess is that you would need to cover said blighted property in plywood or some sort of sheeting to get the neighborhood to sign on.
Is it like a coloring book---the outlines are pre made, but then you "color" in? Or is totally free form from the start?