Mrs. Puff was conceived and designed by series creator Stephen Hillenburg. She was the last of the principal "SpongeBob" characters to be designed, having not been conceptualized until after Hillenburg had completed his show bible. The June 2003 issue of "Nickelodeon Magazine" states that when Hillenburg pitched "SpongeBob" to Nickelodeon, he "had yet to come up with the idea that Mrs. Puff and SpongeBob would be on an endless quest to get SpongeBob a driver's license". Thus, some early development artwork for the show depicted SpongeBob driving a submarine-esque vehicle with ease.