The Mysterious Package Company
So, recently I found out on the UnForums about....something going on called The Mysterious Package Company. The thread doesn't give much information, beyond stuff being mailed out. Membership is free, and easily applied for on the sites main page, though needs to be reviewed. I've sent my application in, and just waiting for it to be accepted.
According to the site's Facebook page, a new chapter will be starting on the 1st of February. So, if you're wanting to get in on it starting, it looks like you'll need to sign up soon.