Stories written for challenges. These are different from Ficathon stories in that a) there is usually not a recipient and b) even if there is a recipient, it is a one-way challenge; no stories were written in return, and c) there sometimes may not be a deadline for the story. However, I am not including finish-a-thon stories here, because even though they have a deadline and no recipient, they are still my own story ideas that I would have written anyway at some point.