Object: Bring a "glow in the dark" cross. As an option, a cross for each child. They can be bought at a Christian supply store or craft store.

I have something to show you this morning. [Show the cross.] It just looks like an ordinary cross, doesn't it? Can I make it change? Yes, by exposing it to light, it will glow in the dark. [If it is possible to make your room dark, do so now so that the cross will glow.]

The whole appearance changes, doesn't it? [If you cannot …