What's the perfect Valentine's gift for a guy? Following the old adage that the way to a man's heart is through his stomach, Hellmann's launched a Valentine's Day special this week for men that love their mayo. Agency Ogilvy NY created a website, 1-800-Sandwich, where women could order sandwiches for delivery to their man in Manhattan specifically for 14th February, donating $1 from each sandwich to charity. The sandwiches were delivered along with a personal message and a photo of the delivery relayed to the sender.