We accidentally used an old used gift card in the Maelstrom fast pass machine and it gave us passes.
We tried a bunch of other magnetic media over the course of our visit, but it only seems to work with Disney gift cards. They can be active, used, or new ones that haven't been activated yet. They seem to work like a regular park ticket (i.e. each gift card can only pull one fastpass at a time and sticks to the same time limits as an actual ticket).
We tried a bunch of other magnetic media over the course of our visit, but it only seems to work with Disney gift cards. They can be active, used, or new ones that haven't been activated yet. They seem to work like a regular park ticket (i.e. each gift card can only pull one fastpass at a time and sticks to the same time limits as an actual ticket).