A variety of old hard disks, wiped/formatted as FAT32. Please bear in mind these will NOT work with modern computers, and they are also not particularly valuable and will be of no use for ebay or car boot! Many of the disks have less capacity than your phone....

If you have some old computers (From ~1990-2005 or so) that you are restoring, and do want a hard disk for them, then these will likely be of use.

IDE (Working): 6.4GB, 15GB, 20GB, 80GB (x2), 120GB, 160GB (x2), 200GB
IDE (Not working): 40GB. Might just need some TLC?
SCSI: 4.2GB. Not sure if this one works - I don't have a SCSI adapter for it.

Old IDE & SCSI hard disks (Kingsholm GL1)