I'd really like to give the good folks who run StackOverflow some more money. But I already have the T-Shirt, coffee mug, and beer stein. What to do...
I keep meaning to go to Vista Print to update and re-order some business cards; but it would be much nicer if I could instead buy some Stack Overflow business cards. You guys already give them to moderators, why not offer them for sale for everyone else?
Replace the part that says "Community Moderator" with community member, or even 10K/20K/30K member and you should be good to go.
Popular Demand brings up a good point (as he usually does). Letting anyone in the world with a Stack Overflow account get a card printed up stating his affiliation with the site might lead to problems. But what about limiting it to 10K+ users? I think that would be a good compromise for everyone.
Based on Charles's answer, what about limiting the cards to people who have a careers profile? Those people have already been screened and invited in. I think that's easily a sufficient bar.