Cheap ways to send a big box, a long way, and it can take as long as it wants?

From what country to what country?

How big? How heavy?

I had a client who got their catalog printed in China and then shipped them over on a boat to save costs. I agree that options will depend on the above info.

From America to Norway. I say the box will be about 25×20x10 inches or something like that. Maybe bigger, but no refrigerator.

Ok, so you will have to do the quote yourself for the exact prices, but I spent 5 minutes and got a few international shipping quotes for you using the following information:

New York, USA > Oslo, Norway
25×20x 10, 50 lbs

http://www.ipsparcel.com
Cheapest Rate: $239.36

http://www.iqglobal.com/estimate/#top
Cheapest Rate: $234.00

http://www.usainternationalmovers.com/baggagemgr.aspx
Cheapest Rate: $251.83

http://www.dhl-usa.com/
Cheapest Rate: $373.57

You could also check Fed Ex and UPS Global.

Holy dogshit..
But those take like a week don’t they, with a plane? I’m looking for something much cheaper, that they put on a boat.

The cheaper rates were on a plane, at least for a single box.
Check the links. They have both options.