It doesn’t fit on a bumper sticker, and it therefore too “cerebral” for most functionally-illiterate Americans, but I like to show them the stimulus seal ( http://www.syracuse.com/news/index.ssf/2009/07/highway_signs_identifying_fede.html ).
It features symbology for industry (the gear), agriculture, (the plant), and state (the stars). Just like the good old hammer, sickle and star of the OLD European communism. Furthermore, the state sits on a field of blue and we all know that BLUE is the NEW RED (i.e. blue states).