The LEGO Star Wars Yoda’s Lightsaber (5006290) was available for a very brief period of time as a gift with purchase when you bought the LEGO Star Wars Mos Eisley Cantina (75290) as it was sold out very quickly.
I’ve heard reports of the physical store being restocked but no confirmation just yet.
There are no ‘exclusive’ part save for the printed LEGO Star Wars Yoda’s Lightsaber studded tile so you could actually construct the lightsaber and holder with existing bricks.
I’ve also included the parts list above so that you’ll be check off the elements you already have and order what you need from Bricklink.
Good hunting everyone!