The cool guys over at evilmadscientist has an interesting DIY project that you can use it to make a geeky necktie this weekend. The idea is to turn an ordinary office neck tie into a tie with blinking LEDs!
The mad scientist called it the “Kraftwerk-Style LED tie” because it uses the Kraftwerk-inspired LED system on the LED arrays. I’m not the technical guy, so perhaps I’ll just direct you to the page that explain everything about this system, as well as the guide to make your own geeky necktie with LED lights.
Here you go, head on over to EvilMadScientist to know more.