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Yes. Here are photos on how to do this. Basically, you just inlay a thin piece of plywood down the center of the tailblock. You glue the face with the plywood to the guitar sides, so you won't see it of you were to look in the guitar. I use a strip around 7/8" wide, and the length of the tailblock.

You can see the strips of carbon fiber I glued into the tailblock here:
download/file.php?id=16115&mode=view

There is no particular need to use carbon fiber. I just happened to have a piece and didn't have any other use for it.

Just to add the to story again here, I brought this up here about a year ago as I've seen vintage and new Martins as well as other brand guitars with a strip on the inside of the tail block. Martin had posted one on their Instagram. Here's my short thread with the Instagram link. I did this a couple of times just because they do but I agree with John's H's assessment that it won't do anything to help the block stay in one piece.

viewtopic.php?p=54834#p54834

I'm never going to split a plywood tailblock....

Well, I finished my tail blocks. Made two out of cherry and one out of oak. Not the most exciting part of the guitar project, I know, but I had fun doing it, and it got me back in the workshop organizing and sharpening chisel, planes and saws. Here’s what I ended up with.

Wow! Thank you all.