From Neil Gaiman's blog:
http://www.neilgaiman.com/journal/2004/10/sage-advice.asp "Top Ten Things Never To Send Your Favourite Writer"
9. Paw-paws.
Yes, I know, they are food. Well they might be food, I don't know. I do know they don't ship. Even Fed-ex. People have tried. There are reasons we don't have them in the North. For all I know, they are local to a three mile square field down South somewhere, available only to folk singers and local residents with a 1/2 mile radius of said field. I repeat, they don't ship.
Now mangoes do ship. Via Fed Ex. If you want something very badly from your favorite writer, a half dozen mangoes to his or her assistant will often move that request right to the top of the list. Trust me.