ilovebacon.com had a churchsign posted that said "Evolution rules!" I'm assuming some hilarious pranksters switched that one. It also had a picture of a Hardy's sign that said "My boss told me to put something on this sign".
I've seen a photo somewhere on the inet. There was a guy on his motorbike. On the back of his t-shirt "If you can read this, the BITCH fell off!". That one was good
And I also saw a sticker on the back bumper of a car:
"Watch out! Blonde thinking"