tattoo with human ashes
https://israeltdsc247.wordpress.com/2019/07/25/the-pros-and-cons-of-tattoo-using-ashes/
When a body is consumed, the residual bone matter won't be fine dust but more like modest pebbles or a sand-like resemblance. BubblegumInk.com use modern day machinery from the USA to reduce and replicate the particle