At first glance, Eric Paone does not seem your typical conservative true believer. The 35-year-old guitarist of the New Hampshire thrash metal band Candy Striper Death Orgy (yeah, no typo) has a flowing mane of hair, swears like he’s in a Make-the-Sailor-Blush contest and cackles as he relates dirty jokes. His band’s odd name was inspired by an…um, adult feature Paone and his friends checked out once in college, which is appropriate enough, actually, since the thrasher’s day job consists of running a string of adult bookstores christened "The Moonlight Readers." When he’s behind that counter selling “marital aids” and...