Thats what happens when I cant get an idea out of my head.
I was wondering why there wasnt a modular lightsaber concept yet. So I created one that really fits my taste.
In the middle there is the main hand weapon.
Next to it there is an off-hand version (shoto) of the lightsaber which has a shorter hilt and also a shorter blade.
The main hand version has a semi-transparent part at the lower end which fits perfectly to the shoto counterpart. So... putting the main-hand and off-hand lightsaber together and you get a double-bladed saberstaff.
When connected the two pieces work together as one weapon. The lightbeam now even can be seen in the semi-transparent middlepart of the double-lightsaber.
The design is simple but elegant.
Red metal with black/gold main part and golden spikes.
On the lower part there is a golden control mechanism (for regulation of the blade).
The lightsabers have NO visible activator button. Instead the activator is located inside the sword. Only the a force user who knows the exact location of the activator inside the sword can make use of this weapon.
Ive no idea how to render a good looking saber blade but in the end Id prefer a blue beam with black core and a gree modulation.
Orange/black also looks cool.