This weekend Farmville is celebrating 1 MILLION users by releasing to the market a hot air balloon equipped with one black sheep! Sweet.
Hot Air Balloon for 10 coins? Yes, thank you, don’t mind if I do. Get yours (or several) while you can.
You will be able to purchase this weekend ONLY for 10 coins.
No word on the re-sell value or if you will be able to purchase in the regular market.
Update: The hot air balloons do essentially nothing besides being a decoration on your farm that happens to take up a significant amount of room. The sheep stays in the balloon and does not produce black wool for you to harvest like your other black sheep. There is NO re-sell value for the hot air balloon, it sells for 0 coins if you wish to get rid of it. Too bad, so sad

Farmville 1 Million Anniversary Hot Air Balloon