This is simply an idea I incorporate once in a great while to add something memorable to an otherwise less than exciting topic. I will usually begin my lesson, casually drop something and bend down to pick it up, and while bent over, apply some strategically placed large googly eyes over my eyelids. (Double stick tape works well for this) Essentially I am blind as a bat from that moment on. I also put on mirrored sunglasses to hide my eyes from their sight. I then introduce myself to the class as a special guest speaker, Bug-Eyed Bob. I even have a t-shirt with the name printed on it that I can wear under my regular shirt and can unbutton and show them. I then proceed with the lesson. Having before hand memorized the Bible passage, and placement of things on a table in front of me, I continue on as if nothing happened. Casually picking up things and placing them back down, riffling through the Bible looking for a particular passage, glancing at my watch, all adds to the fun. Even turning and writing my key points on a white board can be accomplished. Obviously, you probably wont be able to do this the entire class time, so at some point you stop and ask if anyone is curious why you are called Bug-Eyed Bob. Removing the glasses will result in genuine laughter, especially if your eyes are the kind that have a movable black pupil. A little head movement and the eyes are moving around hilariously. Believe me, it’s great fun! I have had kids come up to me years later and tell me that it was the most memorable lesson they had ever been taught.