Variations on these would be to add green-tinted shredded coconut for lettuce. You could add a "slice of cheese" by flattening a yellow starburst candy (see my hamburger made out of cupcake and brownie video here:) ...
by Neelu's world recipes &crafts
by Hello Pixel Art
by Cookies Cupcakes and Cardio
by ella mccully
by CherrylanesCupcakes
by Just Cake It