Rice and beans are not only for cooking. The grains can also be used to make mosaic art on cardboard or cloth.
First draw the design you want to mosaic. Then chose different grains to lay. Make sure the color combination goes well. Then apply glue on the outline of the design and arrange the grains neatly. Complete the borders of all sections in your image. Then fill glue inside each section one at a time and sprinkle the grains. Wait for them to dry. Once done secure them with a coat of varnish and frame it.