WHAT AM I?

WHAT AM I ? Guess what it is and I will send you a small sculpture. Obviously, this is a large, thrown jug with a wild hog sculpted on it. What will it's function be? It has no bottom and the mouth is cut all the way through the jug wall. It has numerous holes and there is a rectangle cut out of the back. Be the first to guess what it is and I'll send you a small pig sculpture. It will be a week before it's finished so you have plenty of time to figure it out. ONLY TWO GUESSES PER PERSON.