Frustrated by the lack of quality lightsabers in toy shops, Makoto Tsai did what any self-respecting hardcore Star Wars fan would do -- he studied engineering at college and then spent years perfecting a replica. As fans gather globally on May 4th for what has become the unofficial Star Wars Day -- this year mourning the death of towering Chewbacca actor Peter Mayhew -- many will be clutching one of Tsai's lightsabers, made in his workshop near Taipei. Local and ethnic Chinese fans are offered a half price discount, providing that they pass a written test "to prove they have enough passion for Star Wars".