This is how to build one like me! Its also really easy.... like 8 steps i think.
Step 1: Parts and Pieces
You need: 2 nerf darts with no tips, A clear Bic pen cap, a bic pen shell, and a thing. I have no idea what it was, but it was a prize in frosted flakes. If ur all techy, the just take a pvc pipe and stick a red LED inside of it.
Step 2: Stick Clear Pen Cap Over LED Light and Fasten Down.
Fasten it over the LED, so you can slide the nerf dart over it.
Step 3: Gettting First Nerf Dart On
Just slide the nerf dart over it. Simple as that :).
Step 4: Slide Cut Pen Tube Into Nerf Dart.
Step 5: Slide Last Nerf Dart Over the Pen Tube.
Slide it on.
Step 6: You Are Finished!
Take your lightsaber into a place and show it off. Whee!