I've been trying to do various fanfics. Personally, I've put a ton of effort into those Rikki-tikki-tavi ones and hope to sell them someday. (Kipling's been dead for a VERY long time and the copyright for The Jungle Book has expired in 2005 or something at the very most conservative estimate, so I'm fine legally in making sequels.)
However, I hope to make a great two-part movie finale to LBT so 19 and 20 are also very important.