You need Adobe Photoshop cs2 or cs3.
You can download this on torrent search engines like IsoHunt.
You need an torrent client like BitComet.
Well lets begin!
Step 1: Get a Picture!!
Step 2: Make an New Layer
Or go to LAYER-NEW-LAYER.
That will bring up the New Layer window.
Call it like Lightsaber or thing.
You can choose your color for the layer.
Hit OK and your layer will be displayed in the layer box.
Step 3: Brushes
Go to BRUSH box on top where brush is displayed.
Click on the brush, that will bring an box with layers.
Select the brush with outside blur.
If the brush isnt there, choose basic brushes from the preset menu.
Step 4: Lets Begin!!
Go to the top of the stick ( in my case outside the image,) and click again.
You see you have an nice blured core!
You can let go shift.
Step 5: Effects
In my case; Lightsaber.
That will bring out the layer style menu.
Click on Outer Glow and you will see a little yellow colored box.
Click on that box and choose your color.
I will do Green.
Then go to the Opacity Line and make that 100%.
Your saber will be brighter.
Go to the Contour box displayed on the bottom of the window.
select the half round one.
That will make your saber even more Blurry.
Step 6: Done! (in My Case Then)
This effect will make your Pic's more reality!
--If you want more sabers from the same color, dont make new layers.
Just repeat step 4!
--Try to make your sabers the same diameter as the stick.
--Use small sticks.
Thanks for stopping by on this Instructable.
Oh and the picture below is the result.