I already made a ninja onigiri last year by using carrots strips and cut out nori as decoration. This time, I only used nori sheets to make the mask and the eyes.
A plastic wrap makes it easier for me to mold the rice and keep the nori in place. It also makes it less messy since the rice tends to be sticky to handle.
Ninja Onigiri, chicken nuggets, mixed vegetables, strawberries and ketchup
Ninja Bento