The Professor's Lab

Okay, okay, so I couldn't
build a boat! The Professor improvised with gadgets and concocted some pretty wild antidotes, but I MUST refute something. Despite what you
hear, the Professor never built a
nuclear reactor or a satellite
communications system out of
clam shells. Here is an inventory
of what he DID build:

a bamboo lie detector
(hooked up to the ship's horn and the radio's batteries)

a coconut shell battery recharger

a bamboo telescope

a Geiger counter

jet-pack fuel

a bamboo xylophone

keptibora-berry extract to remedy Gilligan's double vision

an assortment of tonics, antiseptics, poisons, "spider cider" (to kill off gargantuan morning spiders)  and even a batch of nitroglycerine

soap made from plant fats

shark

 repellent

a pedal-powered bamboo sewing machine

lead radiation suits and make-up
(protection from a meteor's cosmic rays)

a helium balloon 
(rubber raincoats sewn together and sealed with tree sap)

a strychnine serum

 that temporarily
paralyzes Gilligan

an electrode linked to to a pedal-powered generator

a washing machine, water pump and telegraph, all pedal-powered

Mr. Howell's roulette wheel and pool table

From Russell's book "Here on Gilligan's Isle"