Here's a glowing blade I made using 3 blades. The center is white additive/fuzzy. The second Is blue additive fuzzy, and the third is the same but more fuzzy and less bright. It has a streached radial light with a falloff of 25 so it only shines when it gets really close to things, and the closer they get the brughter it glows-but it only gets really bright if they are almost touching. Have fun!!! Go to http://www.renderring.com/lightblade.zip to download.