The aim of the activity was to develop the awareness that “a postage stamp” is a “bridge” between people. Used all over the world, with subjects from Art to History, from Nature to Abstract objects, stamps are highly interesting, both for common people and for philately experts. As for our eTwinning project AstroLabe, the creation of stamps about Space&Universe was an involving and engaging activity for students, who studied, analyzed and exchanged information about them, working on their origins/history/elements. The result was a fully collaborative experience that brought great success and original achievements.