I feel like it’s not something you see very often here compared to other items like knives and fidget items.
I have a JEYI 2230 NVMe case with a 1TB drive I keep on my keychain for backups of things that would be annoying to lose like my AntennaPod stats
Small metal memorystick of 256GB, with a usb-a and usb-c connector.
Can be plugged in nearly everywhere, even use it in my phone.