The Better Umbrella - Hammacher Schlemmer - This is the patented umbrella with an inverted design that enables one to fold it inwards—trapping residual rain drops inside its double-layer water-repellant canopy. Unlike a standard out-folding umbrella, this model’s unique construction enables one to open it through a slightly ajar car door or nearly shut doorway, providing extra protection from precipitation when exiting or entering a home or vehicle.
If I ever have a pond with fish again I want to try it. It would probably drive my cats crazy though LOL (Use a heavy glass vase and invert it on some concrete blocks so they can swim in from the bottom. Submerge the vase and turn it up under water so the vacuum created keeps the water inside. Make sure you have a heavy glass container or the weight of the water will shatter it.)