Who or what is Kumiankka?

edit

Some of you might know me from the X-Plane.org forums where I'm part of the Flight Ops group that organizes the weekly fly-ins. I've uploaded one of the fly-in screenshots from [my web page] to Wikipedia's article on X-Plane, as the previous image used there was quite unimpressive and not very descriptive either. Most of the time when I use Wikipedia I'm just browsing some topic or another, so my contributions tend to be somewhat small and far between. But if I notice some glaring mistake I'll try to set it right of course.

Oh, and Kumiankka is Finnish for rubber ducky in case you were wondering.