 In this Dec. 14, 2015, photo, 32-year-old Tsai Jung-chou, also known as &quot;Makoto Tsai&quot;, compares his upgrade of a replica Star Wars lightsaber, left, with his personally designed LEDs and sound card at his home workshop in New Taipei City, Taiwan. A former optical engineer, Tsai now designs and fabricates his own versions of the iconic sci-fi weapon which he sells for up to $400 per model. (AP Photo/Wally Santana) 