So... you want to make the lightsaber Huh! Well you have came to the right place. It looks like this. So lets make it!
Step 1: What You Need!
You need 2 straws (any colour), An LED (same colour as straw) I had it from a finger light and a AA battery holder.
Step 2: Lets Start!
Place the LED in the straw. Next get the battery pack and connect them to the LED. Make sure that if you solder use a battery pack connecter if the holder has output.
Step 3: Testing It!
When the pieces are secure test the LED's brightness. If it's dim then check the curcuit. Else Congrats you've made a Lightsaber! Part 2 Coming soon (Making The Handle)
Step 4: Editing (Optional)
I used Paint to show how easy it is. I added the logo and inverted it before scaling and moving it.