TF2 Companion Cube Pin

[NINJABreadMan]

well i figured out how they got a pin even before the release of portal2 this dude explains it all
http://www.reddit.com/r/gaming/comments/edgba/thanks_valve_or_why_valve_is_fucking_awesome/
read it tells how lucky this person was like a few other people who had gotten this

 

[J4CK8]

That was posted on the previous page, it's pretty old