I love preaching (and Presiding, for that matter) at weddings. I was quite happy when our friends Justin and Amy asked me to do theirs last summer. Several of the people in attendance have known me for a long time through Betsy (Amy is a fellow PhD student), but had never seen me do my professional thing. One of Betsy's professors, who happens to be an observant Jew, was particularly surprised and impressed.
Justin just finished his Ph.D. in computer science specializing in the search problem, so the "hook" for this sermon seemed pretty obvious to me as soon as I started writing. The Onion article was the prefect way into that. A fun sermon to give, for sure!