This has got to be one of more interesting contraptions that has come out in the past few years. It's called the 'Waterbird' and it allows you to glide over the water without use of power or an engine. You simply hop up and down to propel the craft forward... I can't decide if this is a recreational device or a form of exercise. You decide! Would you buy one? Tell us in the comments section below!

In case you're interested in buying one, I found it on Amazon starting at $521!