1 airborne tube or similar tablet tube
1 4 volt battery from used notebook cell
1 small toggle button (on/off)
You will also need a soldering iron, and small screw driver set..
Step 1: Prepare the tube
Use the a small Phillips head screw driver to poke holes for you led's in top of cap. A total of 6 holes.
Poke another hole in the rear of the tube for you button.
Step 2: Insert LED's
Next use some soder to keep inplace and together.