(Written in 2016 for the yuletide4frodo challenge.)  

Frodo and Bilbo were entertaining Gandalf and Adamanta to a Yuletide tea in the cozy kitchen of their quarters in Elrond's house on Tol Eressëa. They were finishing when there came a tap on the door.

Frodo answered, his face lighting up when he saw Elrond and Celebrian. "Welcome!" he said, "will you join us for tea?"

Celebrian laughed. "No, my friend," said the Lady. "We have come to fetch you away to the Hall of Fire, for we have a surprise for you and Bilbo."

They were quickly joined by Bilbo, Gandalf and Adamanta. Frodo noticed that the latter two seemed unsurprised by the summons; clearly they were in on the secret.

Before they left, Elrond and his Lady took out two long silky scarves to bind their eyes. Frodo felt himself relax as Celebrian gently tied the scarf about his head. For some reason, he always had a good feeling about being blindfolded. Perhaps it was because of surprises as a young child. But even on the journey to Mordor, two of his better memories were of being blindfolded in Lothlorien and in Ithilien. Each time he had opened his eyes on unexpected beauty, at Cerin Amroth, and then at the Window on the West, Henneth Annûn.

The Lady led him expertly by the hand to their destination, and he heard Bilbo's delighted "Oh my!" as his cousin's eyes were unbound.

When his eyes were in turn uncovered, Frodo looked up and caught his breath.
The Hall of Fire was festooned in greenery and ribbons, and lit with candles as well as a great log in the central hearth. The fire crackled with colours--Gandalf's contribution, he supposed. But what brought tears of joy to his eyes was the sound of Elven voices raised in a Shire carol.