On Saturday afternoons I gather some 14 year olds and we make / learn something.
I know this site is meant to be about "instructables". Today we decided to tear apart 7 hard disc drives to see if we could reuse their components. The main prize was the motor, although we were also interested in the magnets etc.
As you can see from the photos we begun at my dining room table with screw drivers and ended in the garden with hammers. The latest drives aren't meant to be disassembled! I call this activity "disc drive destructible".