Worst-Selling Bumper Stickers

I remembered today that a friend and I tried to come up with the ten worst-selling bumper stickers ever. I think we came up with ten but some were lame, and maybe those are the couple I've forgotten ... and I've added a couple of new ones.

Honk If You Love Anal
Got Drugs? I Do!
I Love Black People, Everyone Should Own a Few
I ♥ NAMBLA
Muhammed Atta Is My Co-Pilot
Fuck Christians
On My Way to Shoot Obama
Rapists Anonymous
Cop Killer