Ok, so you have heard me complain 100 s of times about Kaiser having very less tug drive or ball drive. Yesterday, I bought a tug that looked like a big fluffy horse.

He tugged on it well (on a scale of 1 - 10 I will give it a 3 or 4) . But once I Let go of the tug(wanting him to win the tug), I ran away with it, he shakes it violently and proceeds to disembowel the horse.

The 10$ tug lasted about 3 minutes. The fluffy horse is not so fluffy now, actually it is not even much of a horse.

Are there tugs that look like fluffy animals but will hold up?

He is more intent on tearing it open than tugging it.

I want him to tug, because tugging is such an easy reward to carry.

Why does he shake the tug like crazy? Why is he more intent on tearing it apart?

The shaking is to snap the neck or at least severely disorient a prey animal. Our pits do it to gophers & rabbits to good effect. The tearing it apart is ripping the guts out of the bunny before eating it... kind of a kill frenzy, I think. There's just something so satisfying spreading stuffing all over, grabbing a mouthful & flinging it over your shoulder... try it, I think you'll agree. LOL Like a pillow fight, eh?

I've never found a fluffy animal that would hold up once they reached this stage. I moved on to soft, braided ropes (old T-shirts work well), burlap sacking & the softer puppy schutzhund toys.

Obviously, he doesn't get to keep the toy anymore.

Edited to add: I've also used unbraided old T-shirts w/soft tuggers... if I can get them to tear the fabric a bit, the sound seems to encourage them, pump them up a bit & they'll pull a little harder just to hear the tearing. Once they get good and confident about shredding the T-shirts, then I loosely braid strips of T-shirt; then if they really pull, there is still the lovely sound of shredding.