Buckethead is my favorite instrumentalist. He's not a Jazz musician though.
He's not human.
That reminds me, Pat Metheny is another instrumentalist who had some gold albums in the late 80s/early 90s.
> Heard the other day he has health issues and hope he's better now.
I had not heard that until now!
It's all just a character though of course. He did some recordings with the LOTR actors, Dominic Monaghan and Billy Boyd (Merry and Pippin) spoke a little bit about it on their podcast. He had a strict rule about no cameras or cell phones when meeting him, and they were able to hang out with him sans bucket and Herbie.