I took screenshots of the tickets from the phone and printed them out and taped them to a phone sized piece of cardboard and it really expedited the lightning lane scan in process for me and my partner, i taped them on opposite sides of the same piece of cardboard and it was just a matter of sticking the barcode into the scanner, waiting for the ding, and then flipping it around for the other barcode. It worked like a champ and if you're able to do basic picture cutting and manipulation in the computer, it really isn't difficult to make.
The only thing that would've made it better is if I had remembered to print and add the photopass QR code to the card too, then I would've barely had to touch my phone except to book new lightning lanes and check the standby lines during my trip. Definitely saves a bit of battery.