You don't want to order currency from your bank. The price they charge will be very high compared to getting money from an ATM, if you even need it, at your cruise stops. Check what fees your bank charges for getting currency at foreign ATMs (could be a set $ amount or a percentage or a combo of both) and compare that to what the bank would charge to get some for you before you leave. Even if they claim no fees at your bank, the price they charge has the fee built in.
As others have stated, you almost need no money at all in most Scandinavian countries. I would start with a couple hundred US equivalent you get from a bank owned ATM when you arrive for your days in Norway and just use it when necessary using your credit card for most purchases.