I'll second that!! I own two pairs of "store bought" chux and I own twelve pairs of DIY chux that were built by me. Can you guess which kind I like better? Mine of course. The store bought ones are heavy, shitty bearings, and the balance is off by about 7 grams on each pair. My DIY chux have no more than a 1 to 2 gram difference, their light (about 220 grams), no shitty bearings to break as my DIY's are all corded, usually with paracord, or this woven flat 1/2" inch wide nylon string that was originally used to pull fiber optic cabling through conduit, (has a 900 pound pulling strength). Trust me nunchaku are not hard to build yourself, it just takes a little thought and a little bit of work. I recently built a couple pair of matching nunchaku that were made from 4 "Squeegee" handles that I acquired from the local gas station.
Klownkiller