I got to thinking a bit (no I didn't get hurt)...(and no one else did either...LOL) and remembered that I put a small magnet...literally about 1/2 a centimeter long, less than that wide and about as high as its width....into an EDC 'kit'.

I got it from an old DVD player that bit the dust...I took apart the player and found 2 of them in there. I got to thinking about using it for a survival situation and immediately though about making a compass.....so I just tossed it in....

A number of things came from that DVD player (other uses than EDC). It got me to thinking....what have you taken apart and found inside that was/is useful? Especially things that you wouldn't think of.....like a small magnet in the DVD player....