The lightsaber incinerator
This spherical, pod-shaped device, referred to as an incinerator, was engineered to generate extreme heat, sufficient to melt lightsabers. Furthermore, it could trigger the violent explosion of the Kyber crystals housed within them. The destruction of these crystals resulted in the emission of an energy beam from the incinerator, powerful enough to knock down individuals in close proximity.
A notable instance of its use occurred during the celebration of the Jedi Order's eradication, which took place soon after the Great Jedi Purge and the establishment of the Galactic Empire. Grand Vizier Mas Amedda gave instructions to stormtroopers to deposit numerous bowls filled with the lightsabers formerly wielded by Jedi into the incinerator. Amedda then personally placed Yoda's former lightsaber inside before activating the machine. Consequently, all the lightsabers were reduced to nothing within the flames contained inside the pod.