Before you get too wild with hammer and fire, check to see if the any of the nippers are still serviceable as nippers. You may want to use the best preserved pair as a "hot cut" for small work. I have a pair I use to help cut and bend such small details as dragon's horns, tiny leaves and such. They will also serve "as is" for holding onto small work such as leaves, small blades or small springs. For such work, you may want to dull the cutting edge a bit so they don't bite into the metal too much. I use them that way for making small v or leaf springs for old style firearms.