For decades, Wunsiedel, a German town near the Czech border, has struggled with a parade of unwanted visitors. It was the original burial place of one of Adolf Hitler’s deputies, a man named Rudolf Hess. And every year, to residents’ chagrin, neo-Nazis marched to his grave site. The town had staged counterdemonstrations to dissuade these pilgrims. In 2011 it had exhumed Hess’s body and even removed his grave stone. But undeterred, the neo-Nazis returned. So in 2014, the town tried a different tactic: humorous subversion.