36 women at the Dutch-Netherlands match wearing orange mini dresses. No logos, just a color (see how important color is for a brand?). They apparently got in trouble 4 years ago at the Germany-hosted World Cup as well, when a group of men in orange lederhosen with the name Bavaria on them, were forced to remove the costumes and watch the game in their underwear.
Apparently Bavaria claims it was not a marketing stunt they were trying to pull, though they are legally and financially backing the two orange mini dress clad women who were arrested for the stunt.
It's a little sad that fun guerilla marketing can't happen at the World Cup, though when you realize that each half has no advertising, it makes sense that FIFA would be so protective of their sponsors. Does anyone know if this has ever been an issue at the Olympics?