Here is a sample business card submitted to Moo.com for a contest to design a business card for Zeus, king of the gods and capricious tormentor of humans.
I figure that, as a celebrity of Mount Olympus, Zeus would be so famous, that he would simply be known as "Z."
It's like a Hollywood celebrity who is so famous that they don't actually need a business card; therefore, their business card would ironically and humorously reflect that fact.
And, of course, Zeus' card has no contact information. If Zeus wants to get in touch with you, don't worry: he'll find you. Sort of the "don't call us, we'll call you" system of heavenly management.