Buy USB adapter and have spare storage

Disassemble and have fun seeing how far you can throw the platters

Drill through it.

Or use it as spare storage.

Use it to seed important torrents and/or Libgen.is seed

Build an offline library of knowledge and media for the apocalypse

Use an old computer or raspberrypi to make a home media server using Kodi

Create another manual, redundant, and encrypted off-site backup of all your files. Keep it with a reliable friend in another city.

Donate it to someone that doesn’t run a Bitcoin node but promises to if you give them the drive (would have to be a pruned node)

Install a Linux distro onto it and have it as a bootable workstation