I had the exact same issue with a broken earhook after putting the earpiece in my pant pocket. After searching for a replacement, and not finding any I made a new earhook with a copper strand (I think this is a 12G strand, not sure. You need the solid wire, not twisted strands) . Remove the broken piece of plastic in the jawbone by pushing it out with a paper clip. Remove the curved plastic piece out of the leather earhook using pliers and slipping it out. slip in the copper wire through the leather covering leaving about 1/2 inch bare to go thro the earpiece (copper wire is about the right thickness, and copper is quite malleable, and will not break off easily) I had to crimp the end a bit to be able to push it through the jawbone hole. Final task is to shape the hook to your comfort.. I like the new fit better than the original.