I get a very cool catalog from a company that sells neat surplus stuff. The company's name is Deutsche Optik, and they have just started to have manufactured very high quality reproductions of the old Wehrmacht jerry cans. I'm not sure if that is what you guys are after or not, but these cans are pretty nice.
The website is www.deutscheoptik.com
but I had no luck getting on it today, although I've had no problems in the past.
Hope this is what you're looking for.