Have cards sent to atheists after the Rapture. "The Postal Service of the Saved," it works like this:
Just write your letter and it will be hand-delivered immediately
following the exodus of the pure from the Earth. But you must be
thinking to yourself, "How can the letters be delivered after the
Rapture?" The answer is simple. The creators of this site are Atheists. That’s right, we don’t believe in God. How else would we be able to deliver your correspondence after the Rapture?