I’ve just made a minor tweak to My Yard Our Message. You can now download the full resolution jpeg file for each sign as well as embed the signs into another page or blog, just like I am doing here.
All the signs for My Yard Our Message must be licensed under a Creative Commons Non-Commercial Share-Alike License to be submitted to the project, so we are obligated to make the files available to all. They always were, but not easily accessible. Now we’ve got a link right there under each sign for the file.