Monika asking why human bones don't work as a substitute for ivory! Pretty sure they're not the right density, or chemical makeup, or something, Monika! Monika stumbling on the website jonsbones.com which advertises "real human bones for sale"! There's only one way to find out the difference between ivory and human bones for sure, Monika says! Not clicking the link because you don't want to be put on a list!