Since the party was accompanied by a Vistani named Bela, they figured that he might be able to use the tarokka deck to give them a glimpse into their futures. I hadn't planned for this in advance; to be honest the possibility didn't even occur to me, but I think one DM skill really worth honing is the ability to recognize a fun and interesting opportunity.
Luckily, there was a physical tarokka deck on the shelf just above my desk--so I was able to just reach up, as if it were perfectly natural, grab the deck and roleplay Bela giving a tarokka reading for each of the player characters. (The deck I used is pictured above; it's a bespoke tarokka by Eleanor Ferron.) Now I can use these readings as hooks I can write into the game as it continues.