Planning: How to make a paper plane

Since our motif is paper planes we will need to know how to make paper planes when we use them as props in the scenes that are going to be filmed at Emily's house. We are going to need at least a hundred or so paper planes as they are going to become apart of the decor and interior of Emily's bedroom; which is spacious and pretty wide. The paper planes will be stuck all over the walls and ceilings to become a part of the wallpaper and will be hung up in the scenes that are going to be filmed in the cellar so we basically need A LOT of paper planes.

Here is a pretty basic and easy to follow video I found on youtube that explains how to make the perfect paper plane: