I had the extreme pleasure, maybe displeasure, of running into these for the first time while editing the Goosebumps episode of Take My Money a few weeks back. Normally, I'm pretty unfazed by gore - as most any kid growing up on 80-90s generous PG-13 ratings would be, but there's something surprisingly unsettling about these teddy bears. Even I was getting a little queasy to the stomach. I suspect, and this is the intent, it's the juxtaposition of the extreme gore and mutilation with an otherwise ideal cuddly teddy bear. That subversion creates a gulf of emotions, rather than just pulling at one string, that you end up having a stronger reaction to it. Apparently enough folks find these novel enough that they are constantly sold-old.