Kopi Luwak, that is a real thing.  They take those beans, feed them to some monkeys, and they crap out coffee gold.

Doesn’t that sound appetizing?  No?  Why not?

Aha! but does it have to run through the digestive track of a monkey to make it delicious?  What if we were to say cram it down the gullet of a zombie?

I may have just discovered an amazing way to make money during the zombie apocalypse.  It’s perfect!  It satisfies the zombie’s craving for flesh and by harvesting the “Leavings” of the zombie I’ll make huge amounts of money selling disgusting coffee beans to hipsters with too much money.

I’m a genius!

Just one question:  “Do zombies poop?”  Because if they don’t I’m going to be broke.