About Maria...
Hello,
I enjoy different cultures (let the image or the story tell smth about yours), personal touch, handcraft and beautiful handwriting in native languages, which would be a challenge to decypher.
I love books and illustrations, so postcards with your national or favourite characters are welcome, as well as the story unless it is known worldwide. Postcards with mythological creatures that inhabit your country and their stories are welcome as well (yes, I'd like to see how the true Irish leprechauns look like).
But don't set limits, if you feel like sharing smth completely different (your passion for caterpillars or whatsoever) - go for it. Just don't do it as a duty. I'd rather you wait for the right mood and send something truly special, than do it quickly without a true intetion.
Get inspired, be creative and share a bit of yourself in a small piece of paper :)
Maria