I wouldn't do this, because it just looks silly. Yes, one can argue that this will enable people to bring up the topic in conversation. However, I feel that I could accomplish more by supporting the Libertarian party. Actually working to put the right sort of legislators in power seems to me a more direct act, with better results.
Of course, too, I'm a guy, and would gross everybody out naked. ;-)
http://www.antiwar.com