Put rice in 5 different solo cups then you can make the that way as well also our kids had fun with putting them back in 10 min every day my two older ones separated the rice and they glued it to page (Bottle Bag Sensory Play)
Pour water in a pan. Mix food coloring in with oil in little jars. Eye drop oil into pan and swirl into a design. Lay white paper gently over it. When oil starts to appear on the back of the paper remove gently and let dry.