Quote:
UPS won't ship eggs. and i've found bubble wrap and packing peanuts seem to do the best for me. i also don't use an egg carton, as it jars all eggs equally, while if they're just loose in the packing peanuts they seem to ship better as the peanuts take the stress of motion away from the eggs better. i also double box, with packing peanuts around the inner box as well.
in addition, with some experimentation with larger (turkey) eggs over this last summer, it was found that laying horizontally rather than vertically had better hatch rates, even in the same shipping box.