I searched and found him doing all manner of crazy twirling type actions with nunchukas. There are 50 or so videos and if you want to learn how not to hit yourself in the testicles with a pair of nuchukas, he is the man for you. Have a look here.
Then, in a completely separate Internet foray I came across a Japanese man who is also adept at throwing the nunchukas around. And so in what appears to be the nexus of a series on Japanese people doing unorthodox things with deadly weapons (after the post which included a video of a baseball chopping samurai), I present another baseball related martial arts lesson, enjoy. But remember, don't try this at home or this might happen!