Found this on a click through link on another site, https://www.waterlilyturbine.com/. It is a small portable water turbine that you pit in a flowing stream. It generates power to charge USB devices or 12 volt batteries..
"A straight line may be the shortest distance between two points but it is by no means the most interesting". Jon Pertwee as Dr. Who, The Time Warrior.
Cool gadget - Using the flow of virtually any water source is appealing, and that they integrated a hand crank is pretty cool. Curious how much wind you would need to actually get the blades turning fast enough to make it useful.