This is a fun little project. It should take roughly 5 minutes. It will be something cool to show your friends.
Step 1: Getting Started!
Materials needed are 8 x 11 copy paper and a pair of scissors.
Step 2: First Fold
Take the right corner and fold it down towards the bottom left corner. It should create a triangle with about 2 and a half inch of paper left.
Step 3: Cut
With the scissors cut the excess paper. Make sure the paper resembles a triangle.
Step 4: Dual Folds
Take the right tip and fold it so it sits flush with the middle tip of the triangle. Repeat with the left tip.
Take the tips of the two flaps that were created in step 4 and fold them so they sit flush with the top of the triangle. See the picture above.
Step 6: Horns
To create the horns, take the flaps that were made in step 5 and fold them outwardly. As shown in the picture. Make sure they are the same size, for the sake of symmetry.
Step 7: Taking Shape
Take the bottom tip and fold it until it is halfway on the top triangle.
Step 8: Almost Done
There should be an excess of paper ( about half an inch) after the previous step. Fold that bit of paper up to create the bottom border.
Step 9: Finishing Touch
Flip the helmet over and fold the bottom triangle up so the bottom peak sits flush with top peak.
Step 10: Done!
To help the helmet stand, open up the underside so it creates a sturdy base.
You should have a nice origami samurai helmet!