With a few rare exceptions, wallpaper doesn’t generally enjoy a large following these days: difficult and time consuming to put up, expensive, and difficult to take down again when you get tired of it.

But until digital wall surfaces become as cheap as wallpaper, the latter might hang on for a while yet, especially if they look as good as some of the range of new, graphic-designed ‘art’ wallpapers by a new Finnish company called Feathr. Made up of a group of ex-advertising people,…