About Hann...
I would prefer with postcards inside an envelope for protection and collection during this covid period. Sometimes cards are ruined by the post during the route. If you can put some stamps of your country in it, that would be super surprise and thankful.
Specially for cards:
1. Postcards of airplanes
2.-map of your country or state or city
- Greetings from...
- flags of the World Series
- states map cards, cards with the state name from USA
- postcrossing meetups
3.Blue cats
4.loupaper
If you don't know what to write, I hope you can put on a lot of different low-value stamps. I also like beautiful stamps. But it's best not to stick several identical stamps.