You should experiment with some final gathering.. That will lighten up your scene withouth the need of lights. If you don't want/know, then you could also go for some lights with linear falloff, and a high intensity. You need light in your images.
If you need something easy to model, try modeling a lightsaber. They are pretty strightforward.

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Battle Character:Aronin Orino - Try Mon'Tan - Simon "White" Tails