Nickelodeon has teamed up with the U.S. Postal Service for a holiday-themed promotion for "SpongeBob SquarePants." The partnership, which is meant to get children to write holiday letters, features 30 mailboxes wrapped as SpongeBob in New York, Los Angeles, Chicago and other big cities, as well as free, postage-paid SpongeBob postcards that are being distributed at 25,000 post offices.
U.S. Postal Service delivers "SpongeBob" holiday promo