Here's another weird and wonderful extreme sport that has recently been brought to our attention. Developed by pro skateboarder Andy MacDonald, Flybar Extreme is essentially an ordinary pogo stick ON STEROIDS. It's been around for a while but other than making an appearance on the second series of Britain's Got Talent, it doesn't seem to have really taken off on these shores. We can't for the life of us figure out why. It sure looks like a lot of fun, but as Simon Cowell points out, perhaps bouncing up and down gets a little repetitive after a while? But look - you can do all those tricks on it. And grinds! And backflips! How is this thing not massive? It just doesn't make any sense...

Heck, we'd still choose extreme pogo over this any day of the week.