Plo Koon's lightsaber! Strangely similar to Darth Maul's, this saber was originally attributed to Mace Windu in the Episode I visual dictionary, then used as a shared prop between several Jedi in episode II much like Ki-Adi Mundi's. I like Plo Koon the most so I went with him.
Be sure to print 2 Upper Buttons, 7 Emitter Insert A's and 6 Emitter Insert B's. All of the STLs are in the orientation I printed them. Personally, I printed the Outer Pommel with supports generated in Cura.