As we strolled the streets of Stuttgart, we noticed that the accessory of choice among the Dutch fans seemed to be a pair of orange suspender/overalls that included a lion's tail. (The Dutch team crest has a lion.) Doug wondered where you pick up a pair and I said "Probably Amsterdam."
No sooner did I say that, then we turned the corner and found a guy with a big duffel bag passing them out. And since we'd be in the minority by NOT wearing them, we immediately put them on. Doug said it best, in all seriousness, "I don't feel stupid in these at all."