DePauw has a Luis and Clark carbon-fiber cello. It’s an amazing thing. I haven’t given up on traditional wood cellos by any means, but I have a special fondness for our L&C. Here’s a fascinating short documentary showing how they are made.
(I don’t know why they show a violin with an overly-tightened bow for the opening shot, and call it a cello, but it’s clear this is not a made-by-cellists program!)