I've seen this one in the south: "If you don't like Hank you can kiss my ass." Hank as in Hank Williams Jr.
"Don't Laugh - It's Paid For" "Visualize Whirled Peas" "Visualize Using Your Turn Signals" "Reunite Gondwanaland"
My neighbor was telling me about seeing a bumper sticker that said: "Lee Harvey Oswald. Where are you now that we need you?" Though I don't agree with the sentiment, I did think it was funny.
I saw this on a t-shirt the first time and then a bumper sticker: Spellers of the world UNTIE! I also like: Eschew Obfuscation
I never understood the "mean people suck" thing. OK, so no one likes it when people aren't nice. But if you go around saying other people "suck", what does that make <i>you</i>?
"Since I've given up hope, I feel much better" "The beatings will continue until morale improves" "A pessimist is an optimist with experience" -- droxford