Growth and discovery are common themes. The baby elves are often shown learning about their world, like exploring the forests or understanding their elvish heritage.
One popular baby lotr elves fanfiction is 'The Young Elves of Middle - earth'. It tells the story of baby elves growing up in the enchanted forests and their early encounters with the magic and perils of Middle - earth.
There are baby elves fanfiction stories that focus on their relationships. Maybe a baby elf forms an unlikely friendship with a human child. They could share secrets and have adventures together. Or a story where baby elves in a community help each other grow and learn magic, with one baby elf being a bit of a troublemaker but also having a heart of gold.
Well, it's quite an adventure. The characters face new powers and limitations as elves. The story might explore how their relationships evolve in this unfamiliar setting and how they handle the unfamiliar magic and creatures.
You could also try searching on Tumblr. There are many bloggers who are into fanfiction and might have reblogged or even written some baby elves fanfiction. Just use relevant tags like #babyelves or #elffanfiction when you search, and you might discover some hidden gems.
One idea could be that the One Ring somehow ends up in the world of Pirates of the Caribbean. Jack Sparrow, being the wily character he is, gets wind of its power and decides to either use it for his own gain or sell it to the highest bidder. The Fellowship, in turn, has to track it down in this strange new world full of pirates, sea monsters, and cursed treasures.
Lotr has a huge fan base already, and when you add the element of vine fairies, it's like opening a new door to creativity. Writers can create all sorts of scenarios where the fairies interact with the hobbits, dwarves, etc. It gives a fresh perspective on the well - loved Lotr world.
Definitely Legolas and Will Turner. Legolas with his amazing archery skills could teach Will some new techniques, and Will could show Legolas the ropes of being a pirate. They both have a sense of honor and loyalty, so they would make an interesting duo.
Sesshomaru's speed and agility would be a great asset in Middle - earth. He could easily outrun orcs and other foes. His sword, Tenseiga, which has the power to resurrect, could also have an interesting impact. For example, if he were to use it on a fallen hero, it could change the course of a battle.
It could be about a nightmare scenario within the world of Lord of the Rings that has some sort of beauty in it. Maybe it's a dream where a character faces a great danger in Middle - earth but there are also elements like the beauty of the landscape or the courage shown that make it 'beautiful' in a way.