Jalopnik has a great gallery of the titular objects.
http://jalopnik.com/5113782/50-vanity-plates-that-slipped-by-the-dmv (http://jalopnik.com/5113782/50-vanity-plates-that-slipped-by-the-dmv)
I can't decide which is my favorite. Probably one of the examples from Virginia.
Agreed with #1...#2 would be the White Bronco "NOT OJ".
I've got a pic that I took of a primer-black van with devils painted on it with the tags FAP CORP
My personal contribution is on Spoogie, my "Splash Pattern " m750......WTF DUC
Apparently they don't have the Google here at the Arizona DMV:
(http://www.photobasement.com/wp-content/uploads/2008/10/tobeachild.jpg)
Perfect timing...
I just took this picture on Long Island two days ago.
;D
(https://farm4.static.flickr.com/3083/3139876929_2e0a85092d_o.jpg)
My friend's cousin had "2LO4UHOS" on his Lightning until someone complained to dmv and they pulled it. Apparently in NY 1-2 complaints is all it takes.
my favorite
(http://i160.photobucket.com/albums/t180/bobspapa/017.jpg?t=1230394538)
I love me some platypus
I went for stoopid.
(http://i327.photobucket.com/albums/k445/majmontana/Picture008.jpg)
An oldie but goodie. Accidental ass orgy story (http://www.thesmokinggun.com/blueplate/assorgy1.html), compliments of The Smoking Gun (Aside from the title and my description, SFW in case you are afflicted with work this week)
I like the Metallica one.