Grind yukari and nori into a fine powder using a spice grinder or similar tool.

You can also use a mortar and pestle for the yukari.

Use the fine powder sifted through a tea strainer.

Wrap the rice in plastic wrap and shape it into a ball. Roll a rolling pin over the top a few times to smooth the surface.

Unwrap the rice, place the template on top, and gently press with the rolling pin a few times.

Use a brush to apply the nori powder onto the rice through the template.

Remove the template to reveal the design.

For example, Mario is made with yukari powder, and Luigi is made with nori powder.

Place a clear file folder over a printed image and trace the design.

Connect the lines as needed and cut out the template.

You can also use a template originally made for cookies or a stencil template.

Here’s how it looks when packed in a bento box.

This is an example of using the same template to bake character cookies.