This is my idea of a "traditional" flag.
I'd like it to be huge, especially when being carried, so that the carrier is visible nearly as good as with the current ring... thing... Maybe the carrier could leave a colored trail or something.
And there's actually gotta be some more of this technological detail stuff on the staff. But I'm too lazy atm.

You could add some shiny LEDs here and there, so that it looks a little more like the Nexgun.
I like sev's idea, for imo it's more original than the usual flag stuff. I'm gonna upload a Harry-version in a few minutes.
I don't like Quake flags btw.
EDIT: sev's idea, Harry remix
I was thinking of that portal in Hellboy at the beginning of the first movie. That ceremony with Nazis and Rasputin and stuff. Dunno the name of this device though.
I hope it's clear, that the two rings are spinning in every imaginable direction

with a metallic reflective Nexuiz-Logo at the center of this construction, spinning only on X-Axis.
It should also have sev's blue/red glow inside of the spinning rings, but I'm still too lazy to add it now.
Again, the staff has some Nexgun-esque LEDs on it. It needs some tweaking though. A little more of those useless details.
I didn't think about carrying this thing yet. Maybe these spinning rings would apply on the carrier like the current blue/red rings. This would make him veeery visible
And don't mind the broken wires and the sparks. I just needed more detail.
I could draw a "clear" version and add some color to make details more visible. For example I had in mind, that while the upper part has to be tidy and shiny, the staff has to look dirty, used and rusty, because it's made of cheaper material or something...
Anyway feedback first.