I did have an idea right now, but naturally, there is no picture of it on the internet.

So, the idea is basically two tonfa blades. But the trick is, the main blade can extend and the secondary blade can be attached to the top so that you get like a bladed battleaxe thing, which can also use the blades as an energy weapon channelling. Like a cannon.

How's that?

Otherwise I'll go with two fans xD