In proper Klingon form, this model really fought me but once I had the concept in my head I couldn't let go. The provided file is a bit on the "display" side; it's probably fine for those soft Federation officers but I'd recommend increasing the thickness by 50% and using a strong filament if you plan on wrestling a Sabre Bear.
Mova' 'aqI' ruStaq!
The author remixed this model.
Džino's excellent Knuckles were used as a base for the knuckle portion of the model (please respect their license). The bat'leth was created in FreeCAD and the two models were merged.