Well, Justa, many of the other posts here from people actually on the ground in Texas are recommending that the messages just avoid Cindy Sheehan and focus on supporting the troops. They are aware that they will be in the national limelight. After reading their advice, I think they are right. It would be so easy for the LibMedia to focus on one sarcastic "anti-Cindy" message and exclude the other 1,000 pro-troops signs.
I really liked your "The Sixties are over." idea. It would certainly work at our Friday night outings.