Soon after the episode Twilight Time, the Cutie Mark Crusaders tried to procure a gift for twilight to thank her for continuing Twilight Time, despite their poor judgment. They found out the hard way that Spike hadn't been completely honest when he told them Twilight's favorite dessert, and none of them were happy about it. Now they wish to express their 'gratitude' towards him... as soon as they figure out how.
As of 2015-8-14 this story has been revised.
My thanks to Cal for spending time reading through more than once and highlighting several areas for improvement during the revision.