Why not try your hand at modding and to do it by yourself ?
This is a good mod to get started if you want
Start by reading the "Guide for the Newbie" sticky to get the tools you need for this and then go to the " DO you want to mod SW-Kotor? " sticky to find a tutorial on how to make a lightsaber. There are a few of them, including an easy one made by Achillies.