Arlington, Mass. -- To raise a child, one needs three invaluable allies: the Bible, the help of an extended family and "biblical-based resources" -- 9-inch-long spanking paddles of blue polyurethane, according to Steve Haymond from Bakersfield, who sells the paddles online for $6.50 apiece. Twyla Bullock, in Eufaula, Okla., swears by the Rod -- a 22-inch, $5 white nylon whipping stick her husband designed and produced until recently. Named after the biblical "rod of correction," the Rod provides "a faith-based way to discipline children ... and train them as Christians," Bullock explains. Susan Lawrence, a devout Lutheran from Arlington, Mass.,...