A cap-badge carved from bone?

[Bugbear]

In 1942 my mother was given an RAF cap badge carved from the shell of a coconut. She used to wear it on an RAF blue/grey ribbon as a brooch.

Regards

Chas

Now there's an idea. I've carved a few things, like tools for ceramics and bowls, out of coconut shell. Somewhere around here, I even made a bonsai pot out of one. The wood polishes up real nice.