I mean, that is what a “real” lightsaber is too. Contained plasma. So a butan flame is not “that” far off. Now to find a way to shape the flame with magnets instead of relying on laminar flow and you have as close to real lightsaber as you could get.
Is the Hacksmith thing not a Plasma or gas saber?
It's just a big blowtorch
I mean, that is what a “real” lightsaber is too. Contained plasma. So a butan flame is not “that” far off. Now to find a way to shape the flame with magnets instead of relying on laminar flow and you have as close to real lightsaber as you could get.