This suggestion adds absolutely nothing to the game. It would be a fun kind of thing. It may or may not be possible, and I am not sure of all the interactions that would be involved. I am just throwing it out because I think it would be cool to do this.
Add an optional crafting rule for GS weapons that allow you to name them, after they have tier III. Imagine fighting Harry with "Sweetness" and "Chopper" the GS Dorf axes. My monk could have GS Handwraps called "FEWL-YOU-GET-NO-HANDWRAPS". I just cried a little inside.
I suppose that names could be abused in some manner. I also assume that it is not as easy to code as one would think.