I need help with a cottage industry idea: Blackened Bones for crafts and coustumes

If you have ever made biochar from bones you might have found the results oddly beautiful.
At the same time, they are rather fragile.
Is there a simple, relatively cheap way to harden pyrolyzed bones, so they can be used for handles, in jewelry and other ways?

This is a really interesting idea, William.  I don't know, but I want to see if someone can answer this question because now I want to know too.
John S
PDX OR

I'd look at impregnating the bones with resin.  I have impregnated wood with resin for projects before. YouTube has several tutorials. The material can be sanded for a satin finish or polished to a shiny finish. There are resins that are heat cured that wouldn't require a vacuum. The heat cured would also lend itself to the bone's unusual shapes. With the heat cured and a vacuum I wonder what would happen. Might be worth a test.
https://www.youtube.com/watch?v=nucsD0kLyNc

Make sure and let us know if you figure this out.  They are beautiful.  I like bones.

MinWax makes a wood hardener. I have never used it but am told it even makes punky wood very hard. Might be worth a look.