Let me preface this by saying that this could be a "nothing" thread, but it is still a somewhat interesting finding that I will share here.

A few weeks ago, I found this particular unused model in Dark Messiah's files called "models/props/crossing/t_cafebush.mdl". I immediately realized that this model is too out-of-place to be from DMoMM and the file directory said "crossing" so it has to be from The Crossing, I thought.
File path:

Here is the model, the reason it is untextured is because its textures are nowhere to be found:

In fact, this model can be seen in this screenshot of the game, fully textured:

Zoomed in:

I just think it's very interesting that Arkane managed to leave this one particular model from their non-Half-Life-related cancelled Source Engine game into Dark Messiah.