There are some other viable options with estate planning for your pets, in addition to the traditional pet trust.
You can leave your pet to an animal sanctuary and hope that it remains open after your demise.
Or, you may leave your pet to a veterinarian program or humane society, but it will probably be at a considerable financial cost.
You may also leave your pet to a life-care center or rescue organization, but it will not have the same home setting atmosphere for your pet.
In addition, of course, you can leave a bequest in your will, but it will not take affect until your death.