The reasons why Sherlock is so famous around the world now I think are the following ones: 1. The complicated detective stories full of mystery. As we all know, every case in Sherlock seems to be a mysterious plot that Sherlock has to encounter. The unexpectations and the mystery drive us to know what will happen next minute. 2. Watson. The conversation between Sherlock and Watson make Sherlock more popular. Through the talk, we know how incredible Sherlock’s wisdom is. Besides, the gay relationship between them make the whole story more attractive.
For Sherlock cosplay, here is a very good idea for you: http://www.moviescostume.com/sherlock-holmes;
For Sherlock fans favorite daily use, here could’t be better: http://www.fandomsky.com/sherlock.