Things You'll Need
Instructions
Fold the sheet of paper in half endwise (not lengthwise).
Fold that again in half endwise.
Cut off about half a centimeter of the creased corner (at the center of the paper if it were unfolded) with a pair of scissors. Make sure you don't cut the corner that has the open flaps.
Unfold the paper all the way and refold it to resemble a folded letter --- in three even sections.
Flip the paper so that the hole is face down, and fold it endwise once again, but instead of folding it all the way from one edge to the other, fold it an inch and a half to two inches from the edge of the paper. Fold the extra inches of paper over this flap and crease it.
Unfold partially these two flaps and insert the larger one into the smaller one's innermost flap, refolding it as you do.
Turn the completed popper over and blow into the hole to inflate it; smash it against your hands to pop it.