A rainy afternoon and three bored kids at the kitchen table is a scene I know well. We needed something quick, low-stress, and a little bit magical, so we pulled together the Baking Soda Galaxy Ornaments recipe with what we had on the counter. It took about twenty minutes of hands-on time, a little supervising while the dough cooked, and lots of excited shrieks during the painting stage. If you enjoy simple kitchen science and kid-friendly crafts, this feels like the kind of project that fits into a busy day, and it pairs nicely with other fizz-and-paint activities like our baking soda and vinegar fireworks project when the kids want more sensory fun later.
Why This Baking Soda Galaxy Ornaments Works So Well
This craft works because it uses ingredients you already keep in the pantry and a basic cooking step that transforms them into a moldable, paint-ready clay. The baking soda and cornstarch mix cooks into a dough that dries firm but still light, so ornaments hang nicely without sagging.
It stays low-prep. You measure once, cook once, and then the kids can do the rolling and painting. The whole process fits between snacks, homework breaks, or while dinner simmers.
It stays approachable. The texture is forgiving. If the dough feels sticky, a quick dusting of cornstarch helps. If it cracks while drying, a little sanding and paint will hide it.
It stays reliable. These ingredients react predictably: the heat drives off water, the baking soda provides body, and cornstarch gives structure. You get consistent results without a long learning curve.
A Quick Look Before You Begin
Give yourself a short setup window. Plan for about 20 to 30 minutes of active work and one to two days of drying time, depending on humidity. You can speed up drying by placing ornaments near a warm, dry spot, but do not force heat directly onto them.
Expect a small mess. Flour or cornstarch dust may float a little during rolling, and paint splatters can happen. Lay down parchment or a silicone mat and keep a damp cloth nearby to wipe hands and surfaces quickly.
Adult involvement matters at two points. Someone should handle the cooking step and watch the pan as the mixture thickens. The rest of the project suits older kids with guidance for cutting shapes and making holes.
Materials You’ll Need
1 cup baking soda
common household item
1/2 cup cornstarch
common household item
3/4 cup water
common household item
Acrylic paint (various colors)
easy to find at craft stores
Glitter (optional)
optional for sparkle
Varnish or sealant (optional)
optional for durability
Ribbons or hooks for hanging
simple finishing touch
STEP-BY-STEP DIRECTIONS
- In a saucepan, mix the baking soda, cornstarch, and water.
Stir until the powders dissolve into the water and the mixture looks smooth with no lumps. - Cook over medium heat until it forms a dough.
Keep stirring. You will see the mixture bubble, thicken, and finally pull away from the sides into a soft mound. - Remove from heat and let it cool for a bit.
Let the dough sit until it is warm but not hot to the touch so little hands can handle it safely. - Roll out the dough and cut into ornament shapes.
Use cookie cutters or a small cup for round shapes and press gently on a floured surface so shapes lift easily. - Don’t forget to make holes for hanging!
Use a straw or skewer to make a hole near the top while the dough is still warm and pliable. - Let the ornaments dry completely.
Place them on parchment in a dry spot for 24 to 48 hours until they feel solid and no longer cool in the center. - Once dry, paint them with acrylic colors for a galaxy look.
Layer dark blues, purples, and black, then dab on lighter colors with a sponge or toothbrush for star splatter. - Add a sprinkle of glitter if you like.
Apply a thin layer of glue or glitter paint and tap on glitter sparingly so the shine stays subtle and not messy. - After the paint dries, seal them with varnish for durability.
A clear acrylic varnish keeps paint from chipping and makes the colors pop; apply thin coats and let dry between layers. - Finally, attach ribbons or hooks for hanging.
Thread ribbon through the hole and knot it, or add a small metal hook to display your ornaments on a tree or window.
The Simple Science or Skills at Work
This project doubles as gentle kitchen science. The heat drives off water and causes the baking soda particles to bind with cornstarch into a crumbly but workable dough. That’s why you see the mixture change from runny to thick and pull away from the pan.
Kids practice fine motor skills when they roll, cut, and make small holes. They also learn cause and effect: more heat and stirring make a firmer dough; too much water means longer drying time.
When you paint, kids explore color blending and scale. Mixing blues and purples creates depth, while splattering white paint teaches them about stars and pattern variation.
Troubleshooting Common Issues
If the dough is sticky and hard to work with, you likely pulled it off the heat a touch early or your kitchen is humid. Sprinkle a little cornstarch on the surface and knead lightly until it feels manageable.
If the dough cracks while drying, that usually means it dried too fast or unevenly. Let future batches dry on a flat surface in a steady, room-temperature spot, and for the cracked pieces, gently sand and paint; the surface imperfections will disappear under color and varnish.
If the ornaments feel soft in the center after 48 hours, they need more time. Thicker shapes take longer. Put them somewhere warm and dry for a few more days and check by pressing lightly in the middle.
If paint flakes off later, you may have skipped sealing or used a heavy layer of glitter glue. Re-seal with a thin coat of varnish and avoid handling too roughly until fully cured.
Easy Variations to Try
Try tiny planets. Make small round ornaments and paint bands and spots like Jupiter or Saturn. Add a strip of metallic paint for rings.
Make a starry garland. Use one size of circle, paint a galaxy pattern on each, and string them close together to hang over a window or mantel.
Turn ornaments into magnets. Skip the hanging hole, glue a small magnet on the back, and use them on the fridge for seasonal decor.
Involve younger kids by letting them sponge paint simple color washes while older kids do the star splatter. If you want to mix textures, press a leaf into one ornament before it dries for a subtle imprint.
Seasonal twists work well. Add warm tones and glitter for a holiday feel, or use pale teals and silver for wintery decorations.
Storing or Reusing This Project
Pack finished ornaments in tissue or bubble wrap to keep paint and glitter from rubbing off each other. Store them flat in a box in a dry place.
Leftover dough stores for a day in the fridge wrapped tightly in plastic. Take it out, let it warm a bit, and knead before you roll.
If a few ornaments break, reuse the pieces. Crush small flakes into craft paint or use them as texture in mixed-media art. Small offcuts can also dry into little beads or confetti for later crafts.
Label your storage box with the year and a note about varnish. If you varnished them heavily, keep them separate from delicate items so nothing sticks.
FAQs About Baking Soda Galaxy Ornaments
Will this make a big mess?
It will make some dust and paint splatters, but nothing that gets out of hand. Lay down a mat, have wipes handy, and let kids wear an apron. The dough is clean to touch, and most spills wipe up with a damp cloth.
Is it safe for little kids to help?
Yes, with supervision. An adult should handle the saucepan and hot dough. Children can do rolling, cutting, and painting once the dough cools. Keep small decorations like glitter under close watch for toddlers.
Can I swap the ingredients if I am missing something?
Stick to the list for reliable results. Small tweaks like a dusting of extra cornstarch to reduce stickiness work. If you need other activities using baking soda, try a different project like fizzy painting to use supplies in different ways and avoid wasting materials by following our baking soda fizzy painting guide for a change of pace.
What if my ornament doesn’t look perfect?
That is normal. Surface cracks or uneven edges hide under paint and varnish. Imperfections add character and make these feel handmade. If something breaks, you can re-glue carefully or sand and repaint to rescue it.
How long will they last?
When sealed with varnish and kept out of direct sunlight and dampness, they will last for years. If you plan to keep them long term, store in a dry box and handle gently. You can reuse leftovers and even try the technique in other crafts like the baking soda growing tree for more science-style projects.
A Final Helpful Note
Take the pressure off. This project works best when you expect charming, handmade results, not factory perfection. Let kids choose colors and encourage messy splatter as part of the galaxy vibe.
If time is tight, do the cooking and rolling tonight and let the kids paint the next day. If patience runs out, make smaller ornaments so they dry faster.
You will learn more with each batch. The first set may teach you how thin to roll the dough, how big to cut shapes, and what paint layering looks best. Keep a small notebook or phone photo of each attempt so you remember what worked.
Conclusion
If you want a different perspective on galaxy ornament techniques, check out this helpful guide from the Holiday Magic Hub for more ideas on creating out of this world decorations: the Holiday Magic Hub galaxy ornaments guide. For a deeper look at baking soda clay basics and troubleshooting tips from a long-running craft blog, this Mama.Papa.Bubba tutorial is a solid companion to the steps above: Mama.Papa.Bubba baking soda clay ornaments tutorial.
Enjoy the process, expect some happy mess, and know that simple materials make memorable results.
PrintBaking Soda Galaxy Ornaments
Create beautiful galaxy ornaments using basic kitchen ingredients for a fun, kid-friendly craft.
- Prep Time: 30 minutes
- Cook Time: 15 minutes
- Total Time: 1440 minutes
- Yield: 10 ornaments 1x
- Category: Craft
- Method: Cooking
- Cuisine: American
- Diet: Vegetarian
Ingredients
- 1 cup baking soda
- 1/2 cup cornstarch
- 3/4 cup water
- Acrylic paint (various colors)
- Glitter (optional)
- Varnish or sealant (optional)
- Ribbons or hooks for hanging
Instructions
- In a saucepan, mix the baking soda, cornstarch, and water.
- Stir until the powders dissolve into the water and the mixture looks smooth with no lumps.
- Cook over medium heat until it forms a dough, stirring continuously.
- Remove from heat and let it cool until warm to the touch.
- Roll out the dough and cut into ornament shapes using cookie cutters.
- Don’t forget to make holes for hanging with a straw or skewer.
- Let the ornaments dry completely on parchment for 24 to 48 hours.
- Once dry, paint them with acrylic colors for a galaxy look.
- Add a sprinkle of glitter if desired.
- After the paint dries, seal them with varnish for durability.
- Finally, attach ribbons or hooks for hanging.
Notes
This craft is a fun science project that engages children in creative activities while teaching them about cause and effect.
Nutrition
- Serving Size: 1 ornament
- Calories: 50
- Sugar: 0g
- Sodium: 0mg
- Fat: 0g
- Saturated Fat: 0g
- Unsaturated Fat: 0g
- Trans Fat: 0g
- Carbohydrates: 13g
- Fiber: 0g
- Protein: 0g
- Cholesterol: 0mg