Here's another model in my line of impact tools for pre and post apocalyptic SD.  This piece, made from Pure Copper and Brass with brass truss head screws, is insulated in all the right places with .250" black O-Ring cord stock, which dampens any reverse impact and can be replaced when necessary.  The insert window on this model contains a 1/2"  disc of 2 color Mokume Gane.
 
Please pay special attention to the dimensions as they are illustrated. in the photos to ensure a proper fit for your hand!