I personally never even thought about addressing that. But it may be useful to some of you to hear how I ship mine out.
I usually ship my packages in one of the prepaid shipping boxes, because then I don't have any surprises cost wise. Usually it goes out in a medium box, and it costs around $14 to ship. BUT if you have something you prefer to ship by weight, and add on the tracking (tracking itself here in the us usually costs about $7 in my experience.) You can do it that way. The only reason I am recommending the tracking, is because I have had packages go rogue in the past, and it is very disappointing to not get one. ( I spent 3 months making a package for a craft swap only to get blown off and never get my incoming package :( )
By having tracking you have a way to know your package arrived at its destination, as well as an option to use if it doesn't. Mine are covered to $50 for just using the generic pre priced boxes. ^_^ Which while it doesn't cover the time spent on the project and tracking down the extras I put in, it does cover the supplies and being able to remake a package. (which so far I haven't had to thank heavens)
For inner care, I frequently wrap things in tissue paper, so if the box tears things at least stay together inside the box.
Admittedly I'm not sure if there are prepaid boxes overseas, but if someone who lives there can answer with their recommendation I'll happily add it as well because the more information we all have, the easier these things are. ^_^
If you're looking to add to your package... I've currently added candies, two books, and incense to my package. Not because I feel my doll is going to be disappointing, but because I enjoy the gifting aspect of a craft swap.
Please remember if you have any questions or concerns, we would be happy to help you address and get them answered. If you haven't heard from your partner, again please contact us because we're getting to the shorter time aspect of the swap and we want to make sure no one is left behind. Thank you for reading and keep it crafty!