According to a promotion between EA and Slim Jim, you can get a prize everytime you find and input a game code in specially marked packages of Slim Jims, as well as some other marked dried beef. To be specific, Slim Jim is giving away lots of DLC for upcoming games Medal of Honor: Warfighter, Need for Speed : Most Wanted, and Dead Space 3. They're also offering a $5 off coupon for select titles on EA's Origin service. This promotion is only for the Xbox 360 and PlayStation 3.
Specifically, you can get the below:
Downloadable items
Medal of Honor: Warfighter
Wallpaper – Eyes On
Wallpaper – KA
Wallpaper – Longshot
Wallpaper – Walking
Arctic Gun Camo (PC, PS3, 360) "Coming Soon"
Bosnia Gun Camo (PC, PS3, 360) "Coming Soon"
Desert Gun Camo (PC, PS3, 360) "Coming Soon"
Need for Speed: Most Wanted
Wallpaper – Dodge Charger
Wallpaper – Corvette ZR1
Wallpaper – Porsche 918
Exclusive Dodge Charger (PC, PS3, 360) "Coming Soon"
Dead Space 3
"Coming February 2013"
Origin
$5 off coupon for select titles; titles pictured are The Sims 3: Pets, Need for Speed: The Run, SSX, Mass Effect 3, Battlefield 3 Premium, Fifa 12, Tiger Woods something, The Sims 3: Diesel, Fight Night Champion. (Thanks to CAG for this list)
There are also even larger prizes that aren't articulated by Slim Jim, but are mentioned. Those being a PS3, Xbox 360 (along with EA games), and you can also win TVs and tablets and a trip to EA games. Oh yeah, and a belt that holds Slim Jims called a Slim Jim Gamer's Ammo Belt….Specifics are below:
Instant Win Prize Pool
Trip for 2 to meet an EA game team at EA Studios in London, England (Qty. 1)
Trip for 2 to Vancouver, BC and a behind-the-scenes look at EA Motion Capture Studios (Qty. 1)
Trip for 2 to meet an EA game team at EA Studios in Los Angeles, CA (Qty. 2)
42" Flat Screen TV (Qty. 5)
Tablet Computer (Qty. 5)
Video Game Console (Qty. 20)
Slim Jim Gamer's Ammo Belt (Qty. 500)
EA Video Game (Qty. 1,000)
This promotion won't end for quite a while – you can do this all the way up till August 31, 2013, which will mark a full year of prizes. At worst, you could always just buy one for the prizes and throw it away if you're not a fan of them. The Slim Jim commercial aimed at gamers (male gamers specifically) is below.