@NeuroticByNature It was to me too, until I realized the imagination and work it took to create this. They have to cast and make the teeth, not sure what they used. Then they attached them to the zipper, glue, I presume, then they cast and create a concrete stone and then, somehow, they put it all together, just to make a smile.
I think it's easier to simply smile, but this looks creepily interesting.
