(this is a small frills exercise, because it's a little different but I liked the idea)
For instance: report on a note written, recall a text message, an email. Reminisce about a child's spelling test (or perhaps your own). Pick one arbitrarily if you like, but make sure that the misspelled words are key to the piece if you can. A child misspelling "daddy" but not "mommy"... a text message doing the same thing can have very different connotations... see?