You don't need Popeye arms to get a speed rush with this kayak. Created by waterfall jumper Shaun Baker and Andy Selway, the jet-powered kayak packs a built-in motor that can propel you past your pokey friends at speeds of up to 35mph. Steering is controlled via the paddle, which also features a finger throttle to increase or decrease your mileage. Sure, it's noisy and makes it easier to crash into things, but at least you'll be first to the finish line.