SpongeBob is a needlepoint pattern

(spotted by Laurie)

SpongeBob is in Cream of Wheat commercials

(spotted on the interwebs by Laurie)

SpongeBob is a Nintendo DS game

(spotted by Tom at Custom Craftsman Printing)

SpongeBob is in the Diesel Sweeties web comic

SpongeBob is in a tourist information rack in San Francisco

(spotted by Laurie and Jessica)