A lot of people think that The Harlem Globetrotters on Gilligan's Island is the worst example of the Gilligan's Island movies and spinoffs we've had over the years. But this could rival it. It's a show I put out of my mind until I saw a link about it on Pop Culture Junk Mail. It's Gilligan's Planet. That's right, planet. They tried to get off the island via rocket ship and landed on another world (but couldn't find their way back to Hawaii??). Please note that Dawn Wells does the voice of Maryann and Ginger.
Just sit right back and you'll hear a tale, a tale of a boat for sale...
This web site is selling what they say is the original S.S. Minnow from Gilligan's Island. Boing Boing readers aren't so sure, saying the show started before that, but others say that this could have been one of several boats used during the show's run. Looks liegit to me.