I'm an English teacher and I use most of the postcards I receive with my classes !
Feel free to send me any type postcard!
But if you could send me something I can use with my students, that would be great! Something that shows your country, city, town, village, culture, traditions, local food, History, monuments, famous people, landmarks... Something that represents you maybe!
Handmade, seasonal are welcome :)
Some users sent me envelops with several small items, that was a great idea! Then, if sending small things in an envelop doesn't cost you more than mailing a simple postcard, you can send me a coin, maps, a page of a magazine, ad cards, used metro/museum tickets... so I can talk about them with my students.
You can write something in your native language with the translation, what you like/dislike, your teenage/school years, your place, your culture, your traditions, what you can see through the window, how you got your name, your main preoccupation of the moment, how you imagine France or Normandy...