This, via Gizmodo, is awesome:

Neo-Nazis in Germany were given free T-shirts at a recent right-wing extremist rock concert. The black shirt, complete with skulls and bones, said "Hardcore Rebels: National and Free". Too bad for them, there was a secret message hidden inside the shirt.

See, after the free shirt gets washed, it rids itself of that "hardcore" logo and displays a new message, one that tries to convince the Neo-Nazis to change. It says: "If your T-shirt can do it, so can you. We'll help free you from right-wing extremism."

There's never been a better tool to win the hearts and minds of human beings than a free t-shirt. The only flaw in this plan is that neo-Nazis probably don't wash their clothes that often. In any case, someone ought to come up with a shirt like this to hand out at the Republican National Convention next year.