Wondrous Item, Rare
This object looks like a feather. Different types of feather tokens exist, each with a different single-use effect. The DM chooses the kind of token or determines it randomly.
Bird. You can take a Magic action to toss the token 5 feet into the air. The token disappears and an enormous, multicolored bird takes its place. The bird has the statistics of a Roc, but it can’t attack. It obeys your simple commands and can carry up to 500 pounds while flying at its maximum speed (16 miles per hour for a maximum of 144 miles per day, with a 1-hour rest for every 3 hours of flying) or 1,000 pounds at half that speed. The bird disappears after flying its maximum distance for a day or if it drops to 0 Hit Points. You can dismiss the bird as a Magic action.