I was wondering how viable a literal living stuffed animal is?

Initially, I had planned to make a CS for a prototype of the fictional Lively Bear line of teddy bear products. This prototype is a Lively Bear whose stem cells expressed the wrong genes: patches of fur of the wrong variety, scales on some parts of its body, teeth and claws where a cute mouth and stubby appendages were supposed to be, etc.. While he was supposed to be an actual living teddy bear, the only part of his description that's correct is the "living" part.

A mixture of technology and organic matter makes up the inside of his rotund appearance and so forth.

Let me know if this is something that won't work in the context of this story.