Magic.

No, really. I'd expect most potential explanations to fall into one of three categories:

1. "Wait, that doesn't actually explain anything!" (throwing around a code word like "midichlorians")
2. "Wait, that's totally unbelievable!" (like, military artificial intelligence experiment gone mad, somehow escaping into a toy factory)
3. "Wait, that's just plain stupid!" (they are ghosts trapped in plastic bodies, somehow ending up with Microsoft voices)

So I'd rather take no explanation over a disappointing one.

Isn't a highlight a little spurious?

Good point. Still wouldn't mind getting some form of lampshade hanging. 

Oh, I don't know, isn't giving yourself a "kudos" pretty spurious in itself?

This has been a question that even the toys have mentioned on a basis (mainly Arbiter), so at least we know Jon acknowledges the question of their existance and how they are alive.

I'd like to think he does make a reason, but truth be known there isn't really a logical explanation and Jon has tried to make the show as realistic as possible since Season 4's second half onwards, so if he does make a reason I hope it's (believable? probably not the best word, but believable that it fits with the show not actual real life) good.

It is an interesting subject. But I think that explaining it would take away some aspect of the show.

I don't see it as a problem considering it's the end of the show.

It would take away more of the aspect if it wasn't explained in my opinion.

Kay whatever.

Damn Halonut. What's your deal?

What do you mean?

Why the snotty "Kay whatever" response? That was uncalled for.

It doesn't matter XG, but yeah Halonut77 it might not have been intended but your tone was rude, no need for it.