Hi all. Great thread happening here. I am currently working on a Star Wars submission for www.cgsphere.com. I posted a thread here recently about the laser bolts. I have managed to get a very dangerous looking laser bolt using a straight path with many points. (Sorry, the FreeHand jargon may need translating into Blenderish.) IOW, create a square and delete 2 of the corners: then subdivide the remaining edge several times. Then enable halos. I have then used a combination of halos and paths to get the effect. This would work equally well for a lightsabre blade. There are 2 problems, though: it has to be rendered in Blender and you have to use the internal renderer- I love Yafray, but it it doesn't do halos. Hint to developers...;-) Probably my all time wishlist priority. I suppose I could post a WIP if anybody want to see it?!  And may the force be with your project!