Make a batch of Rice Krispies Treats; shape into small oval mounds while still warm. Top with a dab of pistachio paste, then cover with whole or minced red and orange gummy candy (such as Chuckles or Sunkist Fruit Slices). Wrap with a strip of green fruit leather, if desired. To make a sushi roll, flatten a warm Rice Krispies Treat mound into a thin rectangle on a piece of fruit leather and arrange gumdrops down the center. Roll into a cylinder and slice into pieces. Serve the sushi with wasabi, ginger, and chocolate syrup as soy sauce. Cut a sour-candy belt to look like a grass garnish.
Looks like: Pickled Ginger
Soak 2 tablespoons shredded coconut in 1/2 cup water with 1 drop each of yellow and red food coloring.
Looks like: Wasabi
Pulse 2 tablespoons finely chopped pistachios, 1/4 cup cream cheese and 2 tablespoons confectioners' sugar in a food processor.