In this video, we learn how to make a ninja mask out of a t-shirt. First, grab your t-shirt and then roll it up until you get to the head opening. Now, stick your head through the hole and take your sleeves out. Now, take the back of the shirt and roll it over the top of the head and bring the top of the shirt up to the top of your nose. Now, tie the sleeves behind your head and tuck the rest of the shirt underneath the top of the shirt you're wearing. When you are done, you will have a ninja mask in no time.