Here's a list of cute "Christian" bumper stickers I found:(the comments in brackets are mine)

'Do whatever He tells you to do' - Mary (typical Jewish mother)

Another dopeless hope fiend! (that's me!)

Atheists are Beyond Belief (ha! ha!)

Come the Rapture - Can I have your Car?

Do you have any idea where you're going?-- God.

Don't make me come down there! -- God. (that's God the dad)

God's last name is not "Damn".

God doesn't call the qualified, He qualifies the called!

God loves you! And I'm trying. (well, sometimes I'm trying)

I don't question your existence - GOD. (good one!)

The Big Bang theory: And God said 'Pulleth my Finger'
(God farted....get it????)