This is was a sci-fi weapon I made for a Polycount Contest (http://polycount.com/discussion/160434/warframe-tennogen-contest-details).
The idea behind this hammer is that there are two small nuclear reactors in the top of this hammer. The reactors provide power to the magnetic turbines (the out side shells). The turbines spin at a ridiculous speeds. When the hammer comes into contact with an enemy or an object, massive amounts of stored energy is released causing serious damage to whoever is in the area.