How to Make a Sparkly DIY Galaxy Jar
Galaxy Jars also known as Sensory bottles or calm down jars are fun for kids, but what if your kids, no longer call themselves “kids”? But they still love crafts? This galaxy glitter jars project is the sensory bottle that is a gorgeous craft for kids of all ages.

Let’s Make a Galaxy Jar
This glowing galaxy in a jar is fun and easy to make – the more “grown-up” version of our Counting Stars Glowing Bottle, do not require mom’s involvement (even younger elementary kids can make them independently) and the finished product is great to put on display near a bed.
Related: Our Counting Stars Glowing Bottle Craft
Follow the easy step by step instructions below to make this fun craft filled with layers of cotton balls all the different colors of the galaxy night sky.
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Supplies Needed for Sensory Bottle Craft
- Clear glass bottle with a lid – glass jar, glass milk bottle, other clear recycled bottle or a mason jar work great
- Cotton balls – lots and lots of cotton balls
- Glitter
- Food Dye
- Water
- Glow in the dark paint
How to Make Your Own DIY Galaxy Jar Craft
Step 1

Fill your bottle half-full with cotton balls. You will compress the cotton balls into the bottom of the jar – they will fill the lower inch of the bottle when you are finished.
Step 2
Pour some water into the bottle, enough to saturate the cotton balls.
Step 3

Drip 2-3 drops of food coloring into your bottle. Add a squirt of glow paint and a dash of glitter.
Step 4
Then – do it all again! Repeat step instructions: Add more cotton balls, more water, sprinkle glitter and glowy juice.
Keep adding new colors and new layers until your bottle is completely full.
Tip from Our Experience Making this Sensory Jar Craft

We found that as the layers grow it gets harder and harder to fill the jar. Using a stiff straw or wooden sticks to tamper the cotton balls back down into their layer helps.
Step 5
Put the lid on your bottle securely.
How to Keep Your Galaxy Jar Fresh & Glittery
As your bottle ages, you will want to rehydrate the cotton balls to keep the blurred “sky look”.
Set the bottle on your windowsill to allow the glow paint to charge. As your kids drift to sleep they will see a sky, including a glittery milky way looking back at them, from their own galaxy bottle.

Galaxy Jar Makes Great Kid Made Gift or Group Activity
My tween is making these for all of her friends for their Homemade Christmas Swap get together. She is collecting glass bottles!
We have also used this galaxy jar craft as a slumber party craft idea. Then everyone can calm down for bed at night {giggle} and have a souvenir they made home with them the next day to remember the party fun.
Even though a sensory jar would normally be thought of as a sensory activity for younger kids, older kids – teens and tweens – need stress relief too! It can be calming to have a coping mechanism like our dark galaxy jars as a calm down jar for kids of all ages…pssst…and adults!
Galaxy Jar Craft

Kids of all ages (even older kids) will love making their own galaxy jar filled with sparkle and starry night sky fun. This easy craft can be used as a sensory tool like a calm down jar.
Materials
- Clear glass bottle with a lid – milk bottle, other clear recycled bottle or mason jars work great
- Cotton balls – lots and lots of cotton balls
- Glitter
- Food Dye
- Water
- Glow in the dark paint
Tools
- wooden stick, spoon or stiff drinking straw
- cup of water
Instructions
- Fill the bottom of the jar with cotton balls until your bottle is 1/2 full.
- Pour some water to saturate the cotton balls.
- Add 2-3 drops of food coloring, squirts of paint and some silver glitter.
- Repeat the process over and over again adding new layers of cotton and different color paint and food coloring to give your bottle a dark galaxy glow.
- When necessary use a stick, spoon or straw to push the cotton balls compacting them to the bottom of the mason jar.
- Add lid.
Notes
To refresh your galaxy jar in the upcoming weeks, add some water.
More Galaxy Crafts from Kids Activities Blog
- Make galaxy slime that is colorful and sparkly like the stars at night.
- This homemade glitter play doh recipe is a galaxy play dough that is as pretty as it is fun to play with.
- Here are some fun kids galaxy crafts that you don’t want to miss!
- Make a galaxy night light for your room.
- Galaxy melted crayon art that turns into really sweet homemade galaxy valentines.
- Let’s make galaxy cookies to eat while we craft!
- Our galaxy board game is one of the best free printable games for kids!
- And no galaxy would be complete without a solar system model for kids…you can print and make that today!
How did your DIY galaxy jar turn out?