Yun's lightsaber

This yellow-bladed lightsaber was created by the Dark Jedi Yun. The weapon came equipped with a so-called "modified pistol grip" meaning that carefully cast projections echoed the Human hand and gave his index finger a place to rest. Not only that, but the grip was made from a highly malleable "live" polymer that explored the user's hand and morphed into a solid, highly customized grip.

After being brought aboard Jerec's flagship, the Vengeance, Qu Rahn stole it and briefly used it to defend himself against Jerec's Dark Jedi, only managing to bisect Maw before being subdued by Jerec. Yun used it in his duel with Kyle Katarn, taking it with him when fleeing from the aspiring Jedi. When Sariss tried to kill Katarn after his crash on Ruusan, Yun then used it to prevent her from doing so, leading to his death. After that, Kyle Katarn used it to duel and kill Sariss, Boc Aseca and Jerec. He also used it prior to and during his fall to the dark side.

Following his brush with the dark side of the Force, Katarn stopped using this lightsaber and instead built his own lightsaber.

Text and facts from the “Yun's lightsaber” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.