The 'stache is back! After decades of being much maligned in Western culture, the mustache is enjoying a cultural renaissance, thanks to the annual phenomenon of Movember (the international campaign in which men grow facial hair during the month of November to raise funds for prostate cancer research; in 2011, 1.8 million men in fourteen countries participated), and the retro/modern mo's sported by the likes of Ryan Gosling, Ashton Kutcher, and James...