Culture 11 bring us the Halloween Spirit Presidential Index, which polls 625 costumers on which candidate's mask sells better. Currently, Obama mask leads McCain mask 62 to 38 percent. This is significant, because the index has successfully predicted the last three presidents. Throwing a kink in the formula, however, is the unprecedented popularity of the Sarah Palin costume. Palin variations include the "sexy trapper" (with gun and fur-rimmed strapless top) and Miss Alaska (pageant sash and American flag bikini). Might this spell an Election Day upset?