The local handicrafts group had a fascinating display, all done in felted wool. It was set up as a table setting with food and all. Everything you see in the following photos is felted wool.
Addendum: I've since found out that the national association of local handicrafts groups (Husflidslags) are celebrating their 100th anniversary. This display at the library was the local group's entry for a national display of handicrafts in Oslo commemorating the anniversary celebration. This one display was quite impressive, I'm sorry to have missed the anniversary celebration earlier in the summer!