http://www.instructables.com/id/DIY-Hovercraft-4/
http://www.instructables.com/id/Workshop-Hovercraft/
http://www.instructables.com/id/Kitty-Kraft-Hovercraft/
http://www.instructables.com/id/Simple-Leaf-Blower-Hovercraft/
http://www.instructables.com/id/Real-Hoverboard-Hovercraft/