I would suggest that you try a contact staff since you already mentioned that you wanted to try it. And most of the flow prop shops have "sock pois" for less than 50 Norwegian kroner, so you could get a pair of those as well just to get the feeling of poi!

There are weekly flow meetups in Oslo, you are very welcome to join.
All the people in the Norwegian flow community are very welcoming and love to learn their skills to all kinds of people. It is quite little that happens during the cold winter, though, but when the first sign of spring arrives there will be loads of flow happening around the parks of Oslo! :D