You know who wasn't going to stay home on the couch this Halloween, posting Flickr photos of herself gobbling fun-size Snickers bars by the handful while watching her old The View couchmates delight the daytime-TV-craving masses with their sassy flapperwear? Rosie O'Donnell, that's who! Trussed up in the most luxurious Elizabethan finery The Martha Stewart Show's wardrobe budget would allow, O'Donnell dropped by to liven up her old friend's oppressively dour chatfest with her signature brand of merrymaking; even the normally mirthless Stewart had to crack a smile when Rosie insisted on communicating only in the piercing upper register of a British monarch so constipated by queenly propriety that she hadn't moved her royal bowels for the entirety of her reign.