> 2/ I dismantled the HDD units and removed the actual metal disc from each. I
> have 6 of the older, large 13cm diam ones and 8 of the smaller 9.5cm discs.
> Not sure what the metal is - it's tough like steel but light like aluminium.
> The big ones are copper coloured.

Lots of fun ideas, but the easiest is to find a document shredder company.

ShredNow (I think that's their name; it may be ShredRight) has ads on the
buses around town with pictures of various items saying "Yeah, we can shred
that."  One of them is, in fact, a hard drive.

Mike H.
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