have you tried looking for australian or american sun white calrose rice?
its as close to japanese rice without being japanese, and its pretty cheap. basmati and jasmine just arent sticky enough. and they have a different flavour.
Calrose rice - Wikipedia, the free encyclopedia
if you cant find that, try a rice for dessert, like rice pudding. or basically a really round kind of rice. basmatti and jasmine are longer. stay away from uncle ben rice, thats stuff is just odd, although it does have its moments.
and you dont really need nori, which tastes like salty crispy paper. haha thats the best descrption i can give.
when you get the right rice then alot of the flavour comes from the rice and the salt that you use.
you wet your left hand so the rice doesnt stick. then you pour some salt on your palm and fingers,.... the same amount as you would put on the rice if you were only eating the rice, not too much, but as much as you like.
you can use regular table salt or if you have something fancier then that would taste better.
theres no real set size, and you make the size that your hands are, so if you have small hands make small ones, whatever size is comfortable for you to make. i have found that trying to make smaller or bigger onigiri than you are comfortable with can be quite hard, especially getting the triangle shape.
here in japan i've eaten tiny ones that have been grilled for a bit, and i've eaten humongous ones from hokkaido that would fill a big donburi bowl, so whatever size you like is fine.
and you can put whatever you want in,..... smoked salmon is good, i've had that before, but since youre in norway, dont you have a norwegian sashimi dish? with lemons or something? try that.
chicken mayo is pretty good too, as weird as it sounds. i havent tried other meats though.
because of the salt onthe outside we dont normally eat it with soyu. also sometimes the stuff inside like the pickles and salmon will already have a bit of soyu or salt put on them.
i make onigiri for lunch every couple of days, and theyre getting to be my favourite lunch. beats a sandwich to hell :P