Moving a zip , the pull tab of which has broken off
One of the zip pulls broke off my troos, and as the zip was fairly stiff I was unable to move it by simply pulling the slider.
Dental floss, threaded through the slider (through the hole normally occupied by the pull) a couple of times to make a loose loop (just a single-strand loop might be a bit too hard on the fingers and more prone to breakage) moved the slider nicely when pulled.

I should add that this wasn't the fly zip; it's one of thouse trousers that you can unzip the legs off to make them into shorts. You'd look a bit silly with lengths of dental floss dangling from your flies.
( Bob Todd whee, Fri 11 Jul 2008, 8:56, 1 reply, 16 years ago)

I used
a paperclip. Then I soldered it together to stop it folding apart.

Lasted for years in a jacket I had.
( K2k6 has a proper job these days, Fri 11 Jul 2008, 9:38, Reply)