I've explained I'm not much of a gamer, but I am at least aware of FarmVille and know some people who play it. Last week's Farmville update included some limited time fairy tale themed bits. Since I can't explain more than that myself, here's an excerpt from FarmVille Fairy Tale Decorations: Prince and Princess Gnome, Enchanted Forest, & More by Brandy Shaul:
As part of tonight's FarmVille update, we see the release the Fairy Tale theme in the game, which contains (as of this writing) five different decorative items that you can use to decorate your farm like a fairytale wonderland. Two of these items go for coins (luckily, the most impressive decoration is one of them), while the other three decorations are premium, Farm Cash items.
The two coin items are the Enchanted Forest and the Golden Rose Arch. The Golden Rose Arch costs 10,000 coins, and looks exactly like most other arches in the game, save for its inclusion of golden roses. Meanwhile, the Enchanted Forest costs 200,000 coins, but might just be worth the high cost, as it is an animated item, with trees that drop multicolored leaves onto the colorful grassy area below.
The three new Farm Cash items are the Prince Gnome and Princess Gnome (obviously a matching pair), and a Pumpkin Carriage, a la the fairytale of Cinderella. The Pumpkin Carriage here, however, is a mixture of what the carriage looks like while Cinderella is using it at the ball, and after it turns back into the orange pumpkin it originated from. You can add this animated item (complete with moving horses and chinchillas) for 18 Farm Cash.
These Fairy Tale items will only be available in the game's store for the next two weeks. If Zynga adds more items to this theme in the meantime, we'll be sure to let you know.
This page also has images of the animated characters which are quite cute.