piratepaperwallet is a paper wallet generator for Pirate that produces Sapling z-addresses completely offline. Download the pre-compiled binary for your platform, and run it to generate z-addresses.
For example:
./piratepaperwallet -z 7 --format pdf piratepaper-output.pdf
will generate a wallet with 7 sapling addresses and save it to the PDF file.
Run with --help to see all options.