Eckhoffw
Masterpiece
I’m not worried about how to protect them during shipping as much as what it takes to mail plants out of the country.This is how I would do it .
expose the cutting and wrap the root system with some flax ,so the root also have some sand material covering them ( make sure the sand is wet before doing it )
then wrap the root system with insulation tape
Wrap the entire cutting in bubble wrap and put in evelope etc
post in normal evelope ( international mail etc.. )
hopefully it come through