That's just the preliminaries. Next, I agree with the challenges. The Fanfic idea is good, I liked it. The King/Queen should possess some form of intellectual cultivation.
Wall-Art is also a nice idea. Can't say much for that one though, not my strong suit. Popularity test can be easily eliminated with the preliminaries, though.
Create your best Christmas Wall Art on Bubble_Bunny, or Salrion Walls. Who ever has the most unique wall art wins an extra five votes on voting day, and a prize!