Is There A Market For Atheist Greeting Cards?

I've been thinking. Every Hallmark has a religious card section that I specifically avoid. If atheist-friendly cards existed, I might be on board. Above is a mock up for a multi-purpose "congratulations" card. Not all the cards would have to be as "in your face" atheist as this one, but, say, some "sorry for your loss" cards that don't imply going to a "better place" might sell...right?

What do you guys think, should I start cranking these out?