Even the shock it weak, it still can startle people who are shocked by it.
It is a piece of quarts that gets pressurized till it generate electricity. Once there is enough energy the electricity fires out of the ignition ends causing the lighter light up.
Step 1: Legos
-t-shaped connector (blue)
-2x 3long x shaped rods
-foot and leg from a bionical
-a x shaped rod connector
-1x 4 long x shaped rod
-circle to x shaped adapter
The rest just make it look like a gun.
Step 2: Wiring
Run the extension the the aluminum tape.
Now connect everything and pull down on the trigger and see blue sparks arch across the 2 ends of the prongs.