TJ’s carries jugs of it seasonally. Just toss it in a big pot to warm it up and then put it in a Thermal dispenser "Airpot"
For a crowd, you can keep a backup batch warm in an Instant Pot (for Rice & Bone Broth), even without access to a kitchen.
If you need disposables, I like these insulated cups:
6oz seems to be the right size for drinks that are a little intense. I just wish I could find them in smaller quantities or festive colors :/
These are a solution to both issues, but at the cost of seeming slightly too large.
8oz seems a little big (maybe in part because the tops are wide enough for standard lids—the 8oz Genuine Joe cups are more proportional), but before I found the 6oz cups, I also put out 4oz cups out for the Mulled Wine and I sometimes think that if you have to choose between 8 and 4, you should seriously consider the smaller one for cider and wine even though it is very small, because it forces you to go back to the piping hot Thermal dispenser "Airpot" more frequently rather than sipping on a cup that has already cooled down.
(And I personally think cider is pretty intense, even if it’s non-alcoholic.)