My Hovercraft is full of
Eels Star Wars-Design-Spirit! Yay!
This was a plastic hovercraft produced by Testors that was powered by a small .049 glow fuel engine. It had no controls, and would freefloat about 1" above smooth surfaces - bouncing lazily around our patio like a giant air-hockey puck.
I believe this toy came out sometime around 1978. You can see the Star Wars influence that nearly every toy had at the time.