you can master this weapon in about 2 or 3 weeks of training..and the skill last with you forever..you can find a small nunchaku with ball bearing and iron chain with solid tip..get a one with about 4 feet of chain..you can knock someone out cold real fast...and when you do learn.
i know some of you guys are laughing at this, but trust me, you will be easily beaten by a skinny girl who is skilled with Nunchaku.