Coffee bean burlap bags at your local yuppie latte emporium: 75 cents each. Endless amounts of heavy plastic from local post office, free. Baling wire to stich up the open ends of burlap bags after stuffing with plastic and stomping down tight ... a nickel, max? Not only cheap, but they'll stop anything with a field point, are light and can be moved around at will, are resistant when left out in the weather, can be turned vertically for tuning-in, or horizontally to resemble the torso of deer, elk, etc., and to refurbish each spring simply "sock" the old target with a new bag. About 2' by 3' on average. Good luck. El cheapo Dave