Does Anyone have any idea of how to create a very dense compound in a house?

Question

I need to replicrate to density of bone, and i need to make a compound that I am able to make into the shape of the bone before the compound hardens.

Answer 1

Bone is not that dense compared with metals. Maybe you could use plaster of Paris? If you need an exact match for density of bone, you could add heavier or lighter fillers to the plaster before it hardens.