Back to the logo. The peace symbol would be the best choice for many parts of the country. Boston, San Francisco, perhaps Seattle, but not Memphis, Houston, Salt Lake City, or San Diego. The point I was making is that it is not universally seen as a positive image.
Not having a lick of artistic talent, I cannot personally make a recommendation, but since I live in an art community, I know talented individuals who have the vision I lack. I will be approaching several of them and see if they can come up with something for consideration.