I've just found irrlicht, and I think its wonderful - extra, extra kudos to you for remembering that tutorials and doumentation are just as important to everyone else who will use your engine.
I looked at the collision tutorial, and while its great, could you modify it to pick the faeries as an entire object, instead of a triangle. I don't think that many people would care about picking triangles, they want to know if a 'higher level' object is selected/hit. Also, if you modify it, please make it write to the console which faerie was selected (as a number, not a scenegraph object, unless you can assign some user-defined values to them or similar)
I think this would be a very valuable contribution to it (and no, I won't do it as I've just fond irrlicht and am still learning it