I've seen a couple gunblades on Nerfhaven, but I feel hot gluing a foam sword on a gun should not count. I happen to be a huge fan of the Doubleshot, but feel it needs to be more fierce so I did this. All I did was cut a blade out of wood, shaved down the left part of the front grip. After I screwed it all together I Dremeled The front half to look sharp, and the bottom half to me more serrated. Sorry if the pictures are poor.