Sandpaintingedit this page
From Memory Alpha, the free Star Trek reference
Sandpainting is an art form where sand of different colors is put in intricate patterns on a flat surface. This art form is practiced by Native Americans, Tibetan monks and Australian Aborigines.
When Chakotay and Kathryn Janeway were stranded on the so-called planet New Earth, Chakotay worked on a colorful sandpainting while the Captain was relaxing in a bathtub. (VOY: "Resolutions")