friends new headphone's jack was malfunctioning. saw that the soldered ends had come off. definitely from high passage of current or something. but i didnt have a spare 3.5mm male with me. So i cut out the metal part of that jack with a dremel and soldered the wires again. then i had a bainwave. Took the cap of a finished use and trow pen. made the hole bigger. then fit it through the hole and sealed it with resin and super-glue and stuff.