Defcon's badges were really fun this year as well and were also part of a game; some of us are still playing with them. The crypto game in them was designed to

Defcon's badges were really fun this year as well and were also part of a game; some of us are still playing with them. The crypto game in them was designed to get attendees to meet new people and work together to problem solve. Here they are: http://forums.parallax.com/showthread.php?141494-Article-Parallax-Propeller-on-DEF-CON-20-Badge-Start-Here http://forums.parallax.com/showthread.php?141494-Article-Par...!