This recipe by Deborah Gleason uses a musubi press, a type of sushi mold designed for making musubi. Once hot, gently add tofu slices. Place musubi press across middle of nori. Place a piece of cooked tofu into press and top with ½ cup cooked rice, pressing down firmly and evenly, so there is one inch of rice above tofu. Remove press by pulling straight up, then wrap a strip of nori around both tofu and rice.