I’m currently in the A concourse first lounge, and it has a cigar bar that sells a small selection of single cigars- think romeo y julieta and partagas serie D - more expensive per unit than even the overtaxed Australias cigar market, but they are single, in a small humidor and able to be cut onsite so you don’t have to lament not having your cutter with you.

the bar is stocked with johnny walker blue among other spirits and of course vintage moet en chandon champagne.