I think there is a difference from the mind seeing a pattern and interpreting it as having human features, vs actually having facsimiles of those features.. Just Google "human face hill" or "human face mountain" and look at all of pictures that "appear" to have human features but actually do not.

I don't think the sword picture would work because it is still shaped like a sword. That is where you should draw the line. It's not that something appears to be more than one thing, it's that it can easily identified as something it is shaped as. A human shaped statue with a sword hand is easily identified as a human shaped statue with a sword for a hand. A sword with forks coming out can hardly be called humanoid shaped. To do so, one would have to identify a blade as a head, the handle as a torso, and forks as arms and legs.