I had a meeting today for a local business that some clients of mine are working on opening.
It involves ziplines, and there was a demonstration of zipline technology.
One of the components -- a proprietary piece that helps keep carabiners shut -- is called a tweezil -- I'm not sure if I've got the spelling right, but that's how the guy pronounced it, anyway.
And he confirmed that yes in fact it is named after Dweezil Zappa, as a tribute, because its inventor is a huge Frank Zappa fan and vowed that his first great invention would bear that name.
(Can't find any documentation of this offhand online, so if anybody can lead me to more information I'd be happy to link it. But that's what the man said, anyway.)