Fold an 8.5 x 11 inch sheet of paper in half lengthwise
Fold the paper in half again lengthwise to make a narrow rectangle
Unfold once so the paper is folded only once
Fold the left edge to the center crease
Fold the right edge to the center crease
Fold the resulting strip in half along the center crease
Cut a small slit at the folded top edge (about 1/2 to 3/4 inch long)
Open the top slightly and pinch the sides to form a pocket
Fold the bottom up about 1 inch
Crease the folds firmly
Hold the popper by the folded pocket area
Flick the bottom edge upward sharply to launch the paper popper