Philip Morris is giving away aif you use code LNM1864 and sign up for their mailing list. Their site is encrypted and secure and I mention that because you have to provide the last four digits of your social security number to prove you are older than 21. If you don't feel comfortable doing that, I understand, but I personally don't mind. I'm pretty sure a raccoon got in my trash a few weeks ago and stole my identity already, so what do I have to lose?
edit: You can try using LNM4195 as well.
[via Gena – thanks!]