I'm currently in Austria because of work. I love this place, but there's no place like home, where you have EVERYTHING you need, when you need it. So I'm thinking of a kit that allows you to have some options to go through, with little parts. This list might be updated at anytime.
You always need a paper clip for something. Maybe it's a temporary hook, or something to poke a reset button or to release a dvd from it's evil drive.
3D-print a part that clamps on the wire and traps the magnet... Much better than tying a simple, boring knot! I'm sure it'll be cost effective... Right?
That shouldn't be that hard for me, with the good printer at home. I thought of designing a retractable mechanism for the string like those metal rulers that are so dangerous and awesome. Those with the button.
and the stick with velcro tape, to use it to pick the string if you drop it under the table