The items range in price from 5,000 coins for the shiny Diamond Flower to 50,000 coins for the Jewelry Carriage. You can also spend either 8 or 10 Playfish Cash on the Treasure Hunter Mouse and Mining Mole, respectively.
Additionally, head over to the Animals section of the game’s store and you’ll see the newest animal that is available to add to your farm. The White Goat can be purchased for 20 Playfish Cash. It produces goat’s milk that can be sold for 750 coins, and it eats 30 units of grass per day.
To add any of these new items to your farm, head over to the game’s page.