Protecting the dead against aggressive scavengers

Imagine a world in which there was some kind of creature, mundane or supernatural, that eats solely dead flesh, and we have to protect our dead against it. The obvious answer is cremation, but that's boring. Something a little more interesting is making coffins out of something strong, like metal or stone. But what if the creature can claw straight through those? Maybe armed guards at cemeteries would do the trick?

Writing this post, I realized that if course there already are creatures that eat our dead: microbes and invertebrates. But I'm imagining something big enough to be annoying or even dangerous to the living, something to fight.