[kach22i]

Low Flying F16 Jet
http://www.flixxy.com/low-flying-f16-jet-airplane.htm

Radical Boat Design
http://www.flixxy.com/proteus-experimental-watercraft.htm

Water-Powered Jet-Pack
http://www.flixxy.com/water-sport-jet-pack.htm?a=1

Long but good
Snow Vehicle Concept (1924)
http://www.flixxy.com/snow-vehicle-concept.htm