You can not make them. They are not yours.
Until you can use DNA and protein strains to design and build a less intelligent companion for your weak and needy consumption, you should leave animals alone, just as they are. Until you fully understand them, as a hyper advanced god-like creator would, you have no right to mate, train, use, and ultimately abuse animals for your own satisfaction. It aint that animal's job to be your friend, sniff your drugs, or eat that nasty animal byproduct food you feel so good about feeding those underdeveloped lifeforms you cultivate and assign identities to. I just felt like telling someone somewhere after my best friend's girlfriend has decided to de-claw their new kitten. I looked it up, and it turns out that it involves cutting off the cat's first knuckle to prevent the claw from growing back. Just doesn't sit well with me, but who cares? It's just a cat. I'm sure she won't notice when they are gone.