I know another homebrew forum used to do a homebrew "chain mail" type deal. Maybe they still do, I don't know. If I remember right, they called it Beer Pass. Haven't been over there in a while (about 3 years).
What would happen is people would sign up each month to participate. They would send samples to, say, 4 people. And 4 people would send samples to them (usually not always the same people that they sent to as there were a lot of participants). Afterward there would be a thread where they talked about each other's beers. I never participated but it was fun to read the comments different people had on other people's brews.
Would be cool to get something like that going here since there are a lot more active members on this forum than the other one. But it is up to the sole discretion of the forum moderators, since after all, sending alcohol through the mail is illegal. Don't know if that is a can of worms they want to open or not.