Recently I had occasion to put @Kevin Selker 's answer to the test in terms of rapidly chilling beer. However, we uncovered a problem the next morning where people had taken beer and thrown it in the freezer only to forget about it.
I will flip this question around now, what is the best way (is it possible) to take beer from your freezer and safely thaw it for drinking? Is it actually worth drinking if you freeze it solid, then thaw it then chill it again? will the glass be compromised? anyway, i guess this is some regular event at my parents and i would like for this to stop happening.
[as an aside: we wrapped up the two bottles in towels and put them in the basement (which was relatively cool. we came back awhile later and the one bottle had exploded, the other on had a crack around the neck. we had to throw both out. so either this method is fail, or needed augmented.]