Note: This page is based on an assumption referencing Animal Crossing: New Leaf since the Animal Crossing mobile game is not released yet. Will be updated once the game gets available!
Pavé will ask you to bring feathers in the Town Plaza during the event period. Once you hand over the feathers requested to Pavé, she'll give you a piece of furniture.
You'll need your bug net to collect them. Feathers are floating everywhere. Be careful not to ruin some of your flowers when you catch feathers. Some villagers will request to trade feathers.