The XOXO is a decoration in FarmVille. It was released on February 08th, 2010, as a part of the Valentine's Day Event. ( valentines)
This item was renamed to "XOXO Sign" and re-released for a limited time for the Valentine's Day Event (2011). It could be obtained by sharing in the Valentine's Countdown! activity, either by receiving it from a neighbor or buying it for 3 cash. Each player can collect only 10 of this item.