SpongeBob SquarePants would, in theory, have little use for stamps. They would get soggy in that pineapple under the sea.

The U.S. Postal Service is honoring SpongeBob SquarePants in August with a new set of commemorative Forever stamps—unveiling them in a free public event in New York City's Times Square.

The beloved Nickelodeon cartoon is the subject of a sheet of Forever stamps USPS will release on August 1 in a ceremony in ...