Here are some of my favorite signs I've seen from The Rally To Restore Sanity And/Or Fear. The Humpty Dumpty one is my favorite I think:
I got all of these from Buzzfeed and you see many more here (plus get the credits). I'm bummed I couldn't go, but we can't all live on the east coast now can we? Glad to hear Stewart and Colbert drew a larger crowd than Glenn Beck though. Makes me all warm and fuzzy.