Marc de Vinck says: "I was watching SpongeBob with the kids. During the snail races I noticed the announcer's mug. OK, so it most likely stands for Bikini Bottom (where SpongeBob lives), but maybe, just maybe, it stands for something else?!"
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.