A collection of ‘personal helicopters' and flying machines.As the T-shirt says - 'the is is the future, where is my Jetpack'. It seems that Jetpacks are basically dangerous, and since the appearance at the Los Angeles Olympics, nothing much has happened. Still, there are two manufacturers that will actually build one for you, for $250,000, and you can buy a glorified fan that will propel you on an ice rink at the same speed as a puck.If you want rotor blades rather than rockets, the current options are a bit cheaper and more practical, but are still less cool than the Soviet Fold-up helicopter, from the Cold War era.