The Rally to Restore Sanity took place in Washington D.C, a week ago last saturday, and was basically a rally to poke fun at rallies; or more specifically the kneejerk, ill-informed, hypochondriac Tea Party type of rally that America seems to be plagued by in recent years.
Follow the link for a full gallery with some more great examples:
Please note: I don't own these images, they are reproduced here for the purpose of exposure and I highly recommend checking out the rest on Flickr. Thank you!