Here Are Some PAX East Borderlands 2 SHiFT Codes
As part of of Gearbox's PAX East presentation, the company handed out chocolate with SHiFT codes printed on the inside of the wrappers. Some friendly Internet folks have uploaded images of the codes online for all to enjoy. Check out the codes above, or below.
If you're not completely familiar with SHiFT codes and how to redeem them, you can find out more about them here. They give players access to Golden Keys to open special chests in Borderlands 2, and they can be redeemed by multiple players as long as the codes are active. Typically the codes remain active for three hours once they are posted.