There's been a thread on Rhys Bowen's blog about the use of the serial comma -- that punctuation before the last "and" in a series of three or more. (See the link to RB's "Rhys's Pieces" blog down in the right column.)
I came up with quite a good whimsy. If you punctuate the phrase "Snap, Crackle, and Pop" just so, is that using a "cereal" comma?
Get it? See what I did there? Cereal comma. How we roared! No, no, stop . . . I'm killing you, I know, I know, he guffawed, slapping his thigh and clutching his sides lest they split with mirth.
("Cereal" comma. Heh, heh, heh.)