Stomach of Holding

Having recently eaten a Bag of Holding (don't ask how it's your character), your stomach can now contain more objects than it logically should (or objects that are too big to reasonably fit in it).   You may eat any non-poisonous object, and instead of consuming it you may choose to hold it in your stomach for later.  This includes not only food, but things that should normally not be edible (such as keys, a crowbar, and any small objects).   You may carry up to 500 pounds before you suddenly vomit from shoving too much stuff down your mouth, expelling everything in your stomach.   To remove something from the stomach of holding, you must either convince someone to reach down into your stomach or you must vomit it out.  To successfully vomit out the desired object, simply make a constitution check.  Failure results in a random object of the DM's choosing being ejected from your stomach instead and you gain one level of exhaustion.