Here are five of the coolest water gadgets that our editors only wish they had, includes the recently featured Storm Launcher. If we happened to miss any, please leave us a comment. Which ones are your favorites?

5. Storm Launcher

This followup to the amazing HydroFlyer, builds upon that creation and adds twin motors for even more speed. You can still run it on land, air, or water and perform some crazy stunts as you’ll see in the video.

4. Earthrace *Butt-Powered* Speedboat

Peter Bethune created “Earthrace”, which is powered by “biodiesel made of fat from his backside.” This carbon/Kevlar-hulled speedboat sports two, 350kW Cummins engines that generate 1080hp.

His eco-friendly vessel, Earthrace, is a wave-piercing 78-foot trimaran capable of hitting 45 knots (58 mph). Of course, nobody’s butt is big enough to sustain a 27,600-mile journey. Bethune’s contribution amounts to only a liter of fuel; the rest comes from vegetable oils and other animal fats

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3. Pumpabike – The Human-Powered Hydrofoil

Pumpabike is a human-powered hydrofoil that “propels itself across water simply through the motion of the rider jumping up and down.”

If you do manage a bit of speed – and we ended up skimming fast enough to over-take rowers – you can take a break from pumping for 2-3 seconds and glide blissfully

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2. Quadski

The Quadski by Gibbs Technologies is “the first commercially viable high-speed amphibian Quadbike/All Terrain Vehicle (ATV)”.

It’s capable of traveling up to 50 mph (72 kph) on land/water and makes the transition at the flick of a switch

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1. Whither WaterCar

The Whither WaterCar features a 2002 Convertible Camaro body, a turobcharged 2.5L 300hp Subaru engine, and a Berkeley 12JE.

Once the WaterCars is driven into the water all four wheels are hydraulically retracted with the flip of a switch. The bottom covers that enclose the wheel well are also hydraulically extended to create a smooth high speed bottom which allows the WaterCar to easily hit speeds of 40 MPH on the water

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