Well Stephen you have to give the original castaways credit...they did some amazing things with coconuts, bamboo and straw.
How many outfits do you have to bring for a "three-hour tour?"
Why did the Howells bring all that cash with them?
And what Professor brings his whole chemistry set with him?
I can just see this new show now...
"Castaways, your next task will be to build a functional satellite phone so you can call for your rescue, using only these two coconuts."
Potentially amusing...