The Village Voice has a solid, short slideshow of images from this weekend's Reason Rally of atheists, held on the under-construction Washington, D.C. mall. When I stopped by, briefly, I missed the Phelps family (those guys with the "God Hates Fags" or "Fags Doom Nations" signs), who'd travelled all the way from Kansas. I did see this.
Atheist humor: Appropriation of religious tropes, with smart aleck puns to demonstrate their keener intellects. There were signs left over from the Jon Stewart "Rally to Restore Sanity," and through-line between those events is clean.