I have a great little book called "Tea Time With God". It is a small devotional that gives a little devotional/thought each day of the week. Lately, I have been using it with my girls. I do have to bring some of it "down" to their level. But, over all it works just fine and encourages conversation.
My girls love having a cup of tea with it, too! I have a variety of choices and they love to choose their tea bag. It is something simple...can do it anytime and my girls love it.
{so do I!}