There's a couple of hovercraft over in the Instructable Remote Control contest. Here's one and another that I might give a try at sometime.
And it turns out there's a Magnum Opus of hovercraft literature. 700+ pages, 450 illustrations, and a Royal foreword! Here's the book's website and amazon link. It seems like a pretty interesting story.
There's even a hovercraft folk song. Who knew!