According to his legend Star Wars, the lightsaber or Lightsaber it is made of Kyber crystals. In the real world, crystal (unfortunately) doesn't exist, meaning that if someone wants to make a lightsaber, they'll probably have to find the right one too. material, or to think of something else. 
Thus from time to time we have seen swords made with laser, or simple light.
The following case is a completely different approach, since it uses a steady stream of fire.
Ο ηλεκτρολόγος μηχανικός Allen Pan κατασκεύασε ένα λειτουργικό lightsaber που η "λεπίδα" του είναι από φωτιά.
As you will see in video what follows doesn't have the same flash as the super duper swords seen in the movies, but there's no doubt that it will burn you at the slightest touch.
Evidence;
Pan on the video tries to light a cigarette with his gun.
The sword uses a mixture of methanol and acetone as a fuel. The same materials are also used to help butane to flame up or forward.
Αν σκέφτεστε το συγκεκριμένο "όπλο" για κάποια μονομαχία, μάλλον θα απογοητευτείτε, καθώς οι φλόγες δεν θα συγκρούονται, αλλά θα μπαίνει η μία μέσα στην άλλη.
Watch the video
