And it's quite lovely
From an Idea posted on the Halfbakery.
A personal airship both lofted and propelled, at a leisurely pace, by a series of balloons tethered to a conveyor belt which moves along the vertically-oriented perimeter of the longitudinal axis of the craft. Each balloon inflates as it moves from the underside of the ship, up around the prow, reaching peak inflation above the center of the ship. The balloons then deflate as they move around and down the backside.
That lady was a genius.