I decided to make a pumpkinrot scarecrow to put over my grave grabber prop as someone mentioned. So I thought I'd use a 5gal bucket for the ribcage and then cover it with some brown paper and sticks. Here's a pic of it so far.
Wow, that's the easy way to do it! I assume you kinda crush it a little bit so it's wider than it is deep? Would you say that ribcage is about the size of an average male?