I just bought a couple of these:
http://www.apexbrewwares.com/Equipment/ ... luded.html?
I found out about them on homebrewtalk. The guy said they were originally used to ship rice wine from china to the US. He has just started selling them. You can see the thread here:
http://www.homebrewtalk.com/f41/giveawa ... rs-288678/
One user who got one commented that they are very sturdy heavy grade plastic and are better than expected. The good news is it ships from Kansas City I think and gets here fast.
$28 shipped.