There is a book called "God Speaks"
It is a compilation of Billboards that were put up around the USA. In 1998 an anonymous donor wanted an Ad agency - Smith - in Fla. $150,00 to create this advertising campaign to reach people who have "drifted".
It's a great coffee table book.
Here's a few of my favourites.
(hope its ok to post these)
I've missed you.
-God
I don't question your existence.
-God
I saw that.
-God
Don't make me come down there.
-God
I'm color blind.
-God
I'm in the Book.
-God
Is there someone else?
-God