Hasegawa Yosuke folds currency into little portraits with hats. Looks like he tries to match the hat to the currency’s country. And he calls it “moneygami.” For those with an iphone, there’s an app that has folding instructions and a video. (I’m jealous because I can’t check it out, as we don’t get AT&T reception where I live, so I had to give up my iphone.)