Another Bumper Sticker Idea

You all may or may not recall this, but I sometimes come up with concepts for bumper stickers that I’m saving up for a press run one of these days. I’m particularly fond of concepts that parody another, already popular bumper sticker. My very favorite of these is a black bumper sticker with big white block letters reading, “KISS YOUR TELEVISION”.
Now I’ve got another one brewing. A smallish (say 4 x 5 inches) dark blue window sticker with two white silhouettes in the upper two-thirds and white words in the lower third. The words? “PROTEST HUMAN LIFE”.
The only thing I haven’t quite worked out is whose silhouettes to use. Hitler and Pol Pot? Middle-aged mouth breather and his kids? Tom DeLay and Bill O’Reilly? Sam Kinison and Andrew “Dice” Clay? Help me out here, folks.