I just finished a pretty thorough cleaning of my gaming room and found these two codes that I won't use. They are nothing special but it's better than just throwing them out.
First is a 2 day Gold: 2P292-F39CD-VJ76K-HMQKY-BBDK8
Second is for the CGI short "The Package" that was part of Halo Legends: FJY88-3K8XM-GYG89-DTH39-CP7R3
I'm not 100% certain that these codes will work because my kids are always giving their friends on XBL stuff like this but I'm pretty sure they haven't been used yet.
Also, if you take and use the codes just post that you did so. No need for other people to waste their time with them.
I LOVE paying for Xbox Live! I also love that my love for it pisses off so many people.