Postcards rhymes with:
bankcards, datacards, flashcards, mastercard's, mastercards, safecard's, scorecards, backyards, bankcards, blowhards, bodyguards, boulevards, courtyards, datacards, diehards, flashcards, graveyards, hildegardes, junkyards, lifeguards, lumberyards, mastercard's, mastercards, safecard's, safeguards, scorecards, shipyard's, shipyards, stockyards, sungard's, vanguard's