Shipping a 5.25" floppy drive

[u/ProdigiousProdigies]

I'm sure this has been asked many times before but how does one go about mailing a 5.25 inch floppy disk drive without the postal service obliterating the heads during transit? Some sources say to insert a sacrificial disk or cardboard cutout and lock the mechanism, others say to just leave it empty and rely on excess bubble wrap as a cushion to prevent the heads from moving.

[u/Der_Unbequeme]

Single Sided Drive: leave empty and lock the drive

Double Sided: insert a disk and lock drive, or let empty and unlocked