Zynga and 7-Eleven promotion officially starts June 1

We know there's a huge Zynga and 7-Eleven promotion coming up, and a source close to the campaign tells Games.com - The Blog! that we won't be able to get our hands on the FarmVille, Mafia Wars and YoVille-themed Super Big Gulps until June 1 (not May 17, which is the date listed on 7-Eleven's Web site). Guess we'll just have to wait that much longer to quench our thirst for exclusive virtual items in our favorite Facebook games.

For those who aren't in the know, 7-Eleven and Zynga have partnered for what will be the biggest promotion in Facebook gaming history. 7-Eleven will roll out FarmVille, Mafia Wars and YoVille themed drinks and snacks, which will come with a special code that can be redeemed for exclusive in-game items, such as a coffee cart (FV), Showman gun (MW) or a hamburger stand (YV).

Based on these scanned images for the promotion, we've seen all of the virtual items you'll be able to score, and which snacks you'll have to buy to get the corresponding virtual items. Plan accordingly.