How about a floating octopus filled with lighter than air made of flexible skeleton and solar skin. It ripples and morphs to conform with each wind gust to turn it into saved energy or gain lift. It uses opposing forces to it's advantage. It can turn into an arrow or wing or a parachute.
https://io9.gizmodo.com/the-bizarre-experiment-that-became-a-flying-jellyfish-1501503423
