Dreamflower: A little more about Tom and Marigold, set just before or just after or during "Better Once Than Never".

Marta:  A cross-cultural moment between a hobbit and some other race: preferring Rohan or Gondor as far as non hobbit cultures go, and Bilbo as far as hobbits go.

Antane: Frodo, from the Quest onwards, preferably with Bilbo or Sam.

GamgeeFest: Something with Sam and his progeny.

Linda Hoyland: Aragorn, Faramir, Eomer, and the hobbits after the Ring War.

GoldVermilion: A non-romantic moment between Faramir and Eowyn exploring whether they're the type of couple that's always in love with each other.

Larner: Merry and Pippin prepare for Sam and Rose's wedding before he's asked her (Aragorn's or Arwen's foresight optional).

Rey: Osse!

Kaylee: Galadriel's homecoming West, preferring interactions with her family who hasn't seen her in a long time.

Adonnen Estenniel: How did the Elven Rings affect Celeborn and his relationships with Galadriel and Elrond?

Armariel: Gimli's arrival in Valinor.

Cathleen: Pippin's homecoming after the war.

Captain Facepalm: 2-3 lost riddles from "Riddles in the Dark."  [Does not come close to meeting wordcount.]

Pearl Took: Pippin and Sam, pre-Ring War: Sam is of age, but Pippin is still in his tweens.  Must be summery, happy, and involve stars and water.

Thundera Tiger: How did Tom Bombadil get news of the Shire from hobbits, especially on such a short notice?

Harrowcat: "Free Range for me": with general preferences towards Rangers, hobbits, Legolas, and Gimli

Sally: "Sam eating... babies."

Periantari: PostQuest Frodo angst.  One of the other hobbits helps him come to grips with what happened.

Rhyselle: Finrod's learning from the Dwarves as Nargothrond is being built