Phineus Phibes's cloudship lair

The Cloud Ship of Dr. Phineus Phibes is a blimp that can generate its own cloud cover.

Shaggy & Scooby-Doo Get A Clue!
Phibes attempted to use it to disrupt a global warming conference. (More Fondue For Scooby-Doo)

It was rendered partially invisible by a ray invented by Mark and Ricky. (Almost Ghosts)

Appearances

 * Shaggy & Scooby-Doo Get A Clue!
 * More Fondue For Scooby-Doo
 * Almost Ghosts