We don't think Franky Zapata knows what's about to hit him. The French jet ski champion has just put together an absolutely insane leisure product, released a short video about it - and then took off on honeymoon, where presumably he's having about the least romantic getaway of his life as his phone and email inbox go absolutely bananas. And here it is: the Zapata Flyboard. This ingenious and deceptively simple device bolts on to the powerful motor of a jet ski, then routes the resulting water jet through a long hose that connects to a pair of jet boots and hand-held stabilisers. The arrangement lets you fly, Iron Man style, up to 9 metres in the air - or leap headfirst through the waves like a human dolphin. The best part? You can buy it for under 5000 Euro (US$6700). That is, once Franky digs his way out from under the avalanche of orders he's going to come home to.