Object: a picture of the musculature of a human being (can be found in most encyclopedias)
Good morning, boys and girls. I want you to do something for me. Everybody hold up one arm. Okay, make a muscle. Come on, really squeeze that fist. Wow, look at all those muscles. Okay, you can put your arms down now. Let's see if the congregation will do it too. Okay, everybody, hold up one arm and show us your muscles. Come on, you can do it! That's pretty good. Do you know how man…
Dynamic Preaching, Collected Sermons, by King Duncan