Wondrous Item, rare
This tiny object looks like a feather.
If you are on a boat or ship, you can use an action to toss the token up to 10 feet in the air. The token disappears, and a giant flapping fan takes its place. The fan floats and creates a wind strong enough to fill the sails of one ship, increasing its speed by 5 miles per hour for 8 hours. You can dismiss the fan as an action.
Notes: Control, Utility, Exploration, Consumable
this is clever. I might use it and let my players cast gust with it.