Floating Driftwood

Wondrous item, uncommon

Price: 400-600 gp | low sentimentality

This ragged piece of driftwood is a foot long and half a foot wide. It always floats atop any liquid regardless how much weight is attached to it. Pieces broken off it don’t retain its properties, and it loses its properties if it loses more than half its mass.

Paid

If incorporated into the frame of a seafaring vessel, any part of the vessel attached to the driftwood can’t sink and stays upright.

Overpaid

While touching the driftwood and in a liquid, you can use an action to make it drift toward the nearest shore at a speed of 20 feet.

Source: The Gray Merchant of Asphodel