The Earth Day Countdown is countdown activity in FarmVille that lasts for 16 days plus extra 4 days if you was not able to get all 16 items. It started on April 16th, 2013. During the event, Farmers could ask/send neighbors a special item each day, called "item of the day". If the farmer missed a day, then they still could buy the missed item of that day with FarmVille Cash or ask neighbors for it. After collecting all 16 items, the farmer will be rewarded with a special bonus prize, which is Earth Hero Unicorn.