I'd love to see your attempt at an alternate script for Norwegian. I do however speak Swedish but I could probably use it for Swedish to.
Also, regarding Norwegian while you don't have any alternate scripts you do have two ways of spelling, right? In Swedish there called "bokmål" and "ny norsk", but I don't know the names in Norwegian or English.
Does one two one representations of the Latin alfabet count? In such case I'd mention a cipher used in Sweden called "brädgårdschiffer". Here is "hej på dig!" written using brädgårdschiffer with my very sloppy writing on my phone:
It's decrypted by matching up the shape and amount of dots with the letters in the key below. You look at the edges around the letters and the dots above that square.
Link
I do however think that this chiffer probably exists outside of Sweden under some other name and other letters included (note that W and Q aren't included in the key. They aren't really used for in Swedish, apart from loans from other languages)