DIY Projects & Crafts How to Make a Solar System Mobile This colorful solar system mobile is a stylish addition to any nursery and an excellent way to introduce older children to the planets. By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on September 20, 2018 Share Tweet Pin Email Resources Circle cutter, large circle cutter, bone folder, and permanent adhesive tape roller from Martha Stewart Crafts. 30-inch lighted star form available from noveltylights.com. What You'll Need Materials Large circle cutter Small circle cutter Craft paper or cardstock Bone folder Binder clips Sewing machine White thread Scissors Adhesive tape roller Lighted star form Seam binding Fabric glue Snips Monofilament Planet labels template Instructions For each of the nine planets, use a circle cutter to cut 12 circles from craft paper or cardstock of desired colors. Suggested color palettes and diameters are as follows: #Mercury: 4-inch circles in oranges, yellows, and browns #Venus: 5-inch circles in yellows, greens, and white #Earth: 5 1/2-inch circles in white, blues, greens, and browns #Mars: 4 1/2-inch circles in reds and browns #Jupiter: 9-inch circles in reds, oranges, and browns #Saturn: 8-inch circles in yellows and browns #Uranus: 7-inch circles in light blues and purples #Neptune: 6 1/2-inch circles in light blues and greens #Pluto: 2-inch circles in purples and dark blues Divide each group of 12 circles into two stacks of six circles each and, using a bone folder, score and fold the top circle of each stack in half. With small binder clips, secure each stack together. Fit sewing machine with a leather needle and thread with white thread. Set machine to a long, straight stitch and sew through center of each stack of circles, using fold on top circle as a guideline. Tie off beginning and end threads by hand and trim with scissors. Using adhesive tape roller, attach corresponding stacks of six circles together to form stacks of 12. Fold top and bottom circle of each stack in half and, using adhesive tape roller, secure folds together, hiding the seam line. Fold and fan out all circles until each planet is as spherical as possible. Wrap lighted star form with yellow seam binding, securing ends to form with fabric glue. Using snips or scissors, remove zip ties that secure strand of lights to metal form as you wrap. Be sure to wrap form completely, including the power cord. Using fabric glue, attach a 30-inch length of seam binding to each of the five bends in the center of the star form and wrap around the bend a few times to firmly secure. Allow glue to dry completely. To create mobile hanger, bring all five lengths of seam binding together about 20 inches above the center of the star form and tie in a knot, making sure the hanging form is level. With scissors, trim remaining ends of seam binding from knot. To hang planets, first tie monofilament around the center seam of each planet, and then tie monofilament to one of the various bends or points of the star form. Length of monofilament should correspond with each planet's respective distance from the sun, with Mercury being closest to the form and Pluto being the farthest. For the rings around Saturn, cut two of each of the following in the same color palette indicated in step 1 above: a 11-inch circle with an 8 1/2-inch circle cut from the center (1 1/4-inch ring); a 10 1/2-inch circle with a 9-inch circle cut from the center (3/4-inch ring); and a 10-inch circle with a 9 1/2-inch circle cut from the center (1/4-inch ring). With the adhesive tape roller, tape these rings together in the order that they were cut, making two sets of concentric rings. Using adhesive tape roller, tape these two sets of rings wrong sides together, sandwiching four short pieces of monofilament between them. Tie these 4 pieces together at a point in the center of the ring, leaving about six inches of length for each. Trim the remaining ends of monofilament from center knot and hang rings over Saturn. For the rings around Uranus, cut two 8-inch circles from white paper and cut a 7 1/2-inch circle out of the center of each. Using the adhesive tape roller, sandwich the two white rings together, securing them to the monofilament about 1/4 of an inch above Uranus. Download and print out two copies of planet labels template on cardstock. Cut out each star with scissors, and using adhesive tape roller, sandwich each star label around monofilament, about 1/2 inch above each planet. Plug in your mobile and enjoy.