Lol, someone actually just put a light saber into into poser freestuff (it's still in pending so you won't be able to see it).  I like yours better, so I guess that means it's worthy ;)  But seriously, it looks very nice.  If you do release it as a freebie, it might be nice if you include a help file for how to get it to glow in photoshop (or whatever you used), but not really required.