When I was younger, and Teenage Mutant Ninja/Hero Turtles was the big thing, I would make Michelangelo's nunchuckers out of two toilet roll tubes held together by a piece of wool. Years later I would teach a young Chinese martial artist how to control this deadly weapon using the same cardboard bog-roll tubing. That man went on to become Bruce Lee. True Story.
(also) COWABUNGA!!!