Luke Skywalker's Lightsaber

Luke Skywalker built his own lightsaber exceptionnaly late into his Jedi training, despite this fact being explainable by the state of distress the Jedi Order was in after Vader's betrayal, launch of Order 66 and the subsequent Purge orchestrated by the Sith lords Darth Plagueis, Sidious, and Vader himself.

Carrying a green Adega crystal of unclear origin (most speculations imply the crystal to come from Qui-Gon Jinn's lightsaber, although this is unclear) most probably found inside Obi-Wan Kenobi's hut on Tatooine along with other lightsaber parts, this lightsaber was built by Luke Skywalker moments before attempting a rescue mission aiming to free Han Solo from the carbonite slab and out him from the clutches of old crime leader Jabba the Hutt. On Luke's command, the lightsaber entered the crime leader's palace inside the cybernetic entrails of R2-D2, before being spotted through the Force by undercover Mara Jade and released spectacularly for Luke from the sail barge to the Sarlacc's Pit.

Luke Skywalker's lightsaber bears striking resemblance to Obi-Wan Kenobi's last lightsaber, the one the late Master carried throughout the whole Clone Wars all the way to the first Death Star, where he lost it to his former apprentice Darth Vader.

Luke Skywalker, after rescuing his friend Han Solo, joined late Master Yoda and witnessed the 900 years old alien's final moments, as well as the passing of the torch and learning a lot about his own past.

Luke afterwards rejoined the Rebel Alliance as it planned big : destroying the second Death Star while the Emperor was aboard it. Luke followed suit, unaware at first that Vader — and subsequently the Emperor — would sense his presence aboard and organize accordingly : moving aboard the Death Star was the Emperor's way to set up a massive trap to both destroy the Rebel Alliance and turn the young Jedi to the dark side, and therefore to his own service.

This lightsaber is the weapon Luke used to confront Vader and the Emperor aboard the second Death Star, but also most of his opposition afterwards, including his future wife Mara Jade, the imperial remnant, and multiple dark Force users throughout his life. It's also the one he used for teaching his own apprentices, Corran Horn and Kyle Katarn, as well as multiple young students at the Jedi Academy he rebuilt.

Apart from the fact that Luke Skywalker's lightsaber is the first one seen in the movies with electronic parts (both arrows on Luke's blade light up), another notable fact on this weapon is the use of a classical D-Ring instead of the modern Covertec wheel for belt attachment. Obi-Wan Kenobi had one while he served as a General during the Clone Wars ; Darth Vader also had one. Reason for this could be the absence of related belt clips due to their usage restrictions by the Empire. Luke used a custom made attachment system during the battle of Endor.

Unlike his father's, Luke Skywalker's lightsaber remained in his builder and owner's sole possession throughout its history.