Bang! Bang! Bang!

Season 3: episode 29. Airdate: April 10, 1967.

Synopsis
A crate that washes ashore contains a top secret plastic explosive developed by the US Government. The Castaways make use of the plastic in a variety of objects, including nails for the Skipper, dishes for Mary Ann, jewelry for Ginger, golf balls for Mr. Howell, and even fillings for Gilligan's teeth, unaware that once hardened it becomes a dangerous explosive which will detonate on impact!

Trivia
The plate should have made an enormous explosion, given the amount of plastic involved -- instead it's shown making a smaller blast radius than the golf balls.

Memorable Quotes
Lovey: Thurston, don't just stand there, run! Thurston: A Howell never runs in the face of danger. Boom! Thurston: He walks very fast!

Skipper: The golf ball! It exploded! Mr.Howell: A golf ball doesn't explode, it was just plastic. Mary Ann: Plastics don't explode. Professor: But plastic explosives explode! Ginger: My jewelry! Mr. Howell: My golf ball! Skipper: My nails! Mary Ann: My dishes! Gilligan: My teeth! Mrs. Howell: My goodness!