I read a thread recently where it was purposed that we be able to turn our houses into farms with gardens like farmville style. So i got to thinking and come up with another idea to earn gralats. Turn pets into livestock.

Just add genders to the animals for breeding purposes,and then you can sell off the offspring or keep mating them and get more animals. Another thing would be for some of the animals to make products that can be sold to venders. like cows would produce milk,sheep would produce wool,chickens would produce eggs,ect.

It would take time for animals to mate and breed an offspring or produce goods to sell and the amounts you get wouldn't have to be that much. You could also introduce feed you would have to purchase for your pets,and giving them feed would increase your odds of successful mating.