Laura Cesari made a set of beaded necklaces that are patterned after the orbits of our solar system. Each one shows either the entire solar system or a planet and the orbits of its moons in proportionate distances:

Years ago, I discovered a particularly nice piece of agate in a friend's bead shop that reminded me of Jupiter, and created a "Jupiter necklace" with other beads orbiting around it like moons. In the Solar System design, I decided to "zoom out" and focus on using small beads to measure the proportional distances between the planets. It took some calculations, a few abstractions, and a couple of prototypes: the first version was 75 inches long, made with 7-millimeter tubular glass bugle beads, each bead representing about 20 million miles. This Solar System Necklace design seemed like a good way to translate the mind-boggling distances of space into something tangible, something that people can measure physically with familiar objects.

Link via Make | Photo: Make