If you meant the Meitantei Conan: Kako kara no Zensōkyoku Prelude (which features installation), or a specific fansub release, please clarify
If your query also pertains to how to install or download episodes (legally), consider the following: detective conan episode 491 install
As a result, the episode that is is actually numbered Episode 476 in the international English releases . If you meant the Meitantei Conan: Kako kara
(the start of the "Clash of Red and Black" arc), you can assemble various Conan-themed paper models using standard papercraft methods. Common Detective Conan Paper Projects or a specific fansub release