Mind you now, that using a normal rectangular piece will not give you the desired results. You must use a square piece of any size. Start by making two diagonal folds for each corner to corner cross section. Now do two hot dog folds, like wise, then take each corner and fold it into the middle so it resembles triangular tabs. Now take these tabs and once again fold them in half but up to the outside of the paper, resembling another triangle. Fold Over, and do as shown in the video for the best results, as this is definitely a project needing visual aid. Have fun!