What to tell the ho.
<
Concrete.
https://scitechdaily.com/bones-and-shells-may-lead-to-a-new-formula-for-concrete/#:~:text=MIT%20researchers%20have%20proposed%20a%20bioinspired%20approach%20for,as%20blueprints%20for%20a%20stronger%2C%20more%20durable%20concrete.
>Very useful for virtue signaling - ugly useless POS otherwise