If someone gave you a million dollars to come up with a great bumper sticker, what would it say?
Mine would be this (because of all of the negative crap going on in the world): Heaven Is Within
Obviously that’s not original, but it works for me. 
Mine would be the same as my .sig:
I like the original…
Shit happens.
It seems so many people get sooo offended by the word shit. I guess that’s why I like it so much.
I want one that says, “Plutocratic Theocracy NOW!”
You may as well go with the flow. 
Aw, fuck …
“If rings are outlawed, only Nazgûl will have rings.”
In very small type: If you can read this I have your credit card number
Mine would say “I see stupid people”.
This is not the bumper sticker you are looking for. Go about your business.
Copy Editors: Killing your babies whether you like it or not.
OR
Death to widows and orphans.
Bugger off, you’re to close
OR
My other car is a Ferrari, same as this
Mine’s already been done:
Keep Honkin’. I’m reloading.
“It Depends”
One of my profs in college said this was the answer to many psychology-related questions. It fits in many real life situations, as well.
Either “Move along…there’s nothing to see here.”
or
For a good time call _ _ _ - _ _ _ - _ _ _ _
“I am not racist, sexist, ageist or homophobic, I hate all people equally”
“Rattlesnakes are Mother Nature’s way of saying ‘I hate rednecks’”
“Legalise post-natal abortion”
“My C- student can hack your Honor student’s computer”
“Myspace is not for you”
“Jesus is coming and so am I”
Of course, I had one years ago that I lurved “What’s so intelligent about the CIA?” and my daughter bought me one recently that says “Jesus loves you, but I’m his favorite”
Keep your stupidity to yourself.
I used to have: “Stupid People Shouldn’t Breed” but I traded the car.
“U” is not a word.
American Psychological Association (APA):
u. (n.d.). Dictionary.com Unabridged (v 1.1). Retrieved May 09, 2007, from Dictionary.com website: U Definition & Usage Examples | Dictionary.com
Chicago Manual Style (CMS):
u. Dictionary.com. Dictionary.com Unabridged (v 1.1). Random House, Inc. U Definition & Usage Examples | Dictionary.com (accessed: May 09, 2007).
Modern Language Association (MLA):
“u.” Dictionary.com Unabridged (v 1.1). Random House, Inc. 09 May. 2007. <Dictionary.com http://dictionary.reference.com/browse/u>.
Sure, criticize my bumper sticker…