Bag of Endless Riches

This bag looks like a simple coin pouch. However, it can store an unlimited amount of currency. Any attempt to store anything other than currency in the bag will result in the item being expelled from it. To withdraw currency from the bag you need only to reach in and utter the command word. Then state how much currency you wish to remove. If the bag does not contain the amount of currency you are attempting to remove, it will give you all of the stored currency it has in it. The bag only weighs 5 lbs, no matter how much currency is stored inside.