and cut off the top 6 inches. (we saved the tops and made small snack bags by gluing and folding the bottoms shut.) take the bottom half of the bag and start making 1 inch cuts along the top and then fold them over. these tabs will be what you use to tape them down. repeat with all the bags.
lay out the board and place a prize on each circle so the prizes are evenly distributed. then cover each one with a paper bag and tape down.
once all the bags are attached, fold over the side panels to cover the bags. you may have to tape the side panels together 