From Wiki Regardless of its origins, the nunchaku was not a popular weapon, since no known traditional kata (choreographed practice movements) for it exist, possibly as a result of its lack of efficacy against contemporary weapons such as the katana. Picking up on the 5 year old doing his routine, I was wondering about just what type of attack someone would attempt to do. Looking at the above, I would imagine that the lower part of the body would be favoured, as apposed to trying to crack a defenders head like a melon. I noticed when reading a bit further down on the Wiki, other arts use them. Just assumed it was a Kung Fu weapon. Guess I watched too much Bruce Lee. What do you peeps train with them. Do you actually spar with them?