Older Hard Disk Drives (Borked) - For parts

- I have tried running fsck (file system check), badblocks and other system utilities (on linux) on these units. I think these units have reached eol (end of life) - Maybe someone knows how to salvage the parts or has another use in mind - I'll keep the listing open for a couple of months (3months). Then, these are going to the recycling center - If they work, storage space would have ranged from, 8 GB (Gigabyte), 18 GB and I think the Seagate (with the cover on it) is 40 GB (system recognizes it as 2 TB inaccurately) thx