Begin with a square sheet of paper - we were using the standard 150 mm x 150 mm, approx. 6" x 6"
1 – Fold square paper in half diagonally wrong sides together, unfold
2- Repeat diagonal fold creating crossing crease, remember wrong sides together unfold
3 - Fold paper in half wrong sides together, unfold reverse that fold so the paper is now wrong sides together.
5 – Fold each point of the triangle up to the top point, turn over and repeat on other side.
6 – Orient model so the open end points away from you. Fold right and left corner to center. Turn
model over and repeat.
7 – Fold point at top out as shown, then fold back and tuck under flap. Repeat front and back on all 4 points.
8 – Blow into the hole at the top of box to inflate.
It didn't take long at all to fold a whole bunch of these models.