PostcardsFromSpace are available for international orders as a bulk purchase.
You will receive all the cards in one package, so you can post them to your child using your country’s domestic mail service. This works out cheaper for you and is more reliable.
Your PostcardsFromSpace will come with the greeting to your child and their address labels attached, so all you need to do is add a stamp and post them.
Note that PostcardsFromSpace are written in English. They are aimed at the 8-12 years age range.