it takes a stamp to mail a letter

You might want to 'write a letter' to the players and have it posted to them, care of the Compagnie Internationale des Wagons-Lits, Orient Express.  But if you do that, you have to put a stamp on the envelope, right?

Heres a stamp.  Size it appropriately, maybe put a couple on there for 'international purposes'.  *shrugs*