LumiGeek co-founders, Joe Martin and John Taylor, put their heads together in 2011 to come up with a truly unique way to launch the Red Bull Creation hackerspace challenge.
The duo created a custom circuit board with a series of puzzles and riddles to point recipients towards the event website. At first, the board only blinked morse code that hinted at a password for an encrypted ZIP file that mounted over USB. From there, more and more clues revealed themselves as they poked and prodded deeper into the mysterious package.
The folks at the i3-Detroit hackerspace did a very thorough tear-down of the puzzle board: