About Hans...
I am 72 years and live as pensioner in Mosbach, Germany .
I love to recive postcards, and the motive doesn't matter, but the only thing I don't want is tourist card (multi view) over your home town.
But if you wonder what I like, here are some suggestions:
All kind of art cards, classics as new
Iron and Steel
Steel Constructions
Nature - Sea, storms, moon, sun, clouds, lightning, waves, halo, aurora borealis, rainbow
Erotic art (not porn)
modern architecture
Music Instruments
Miles Davis
Coltrane
Porträts
wooden Pencils
writing pens
But what I most want is your most precious card, that you like best, maybe I will have a new favourite :-)
Happy postcrossing
Viele Grüße Hans