How to Make a DIY Glittery Galaxy Jar


Galaxy Jars also known as Sensory bottles or calming jars are fun for the kids, but what if your kids don’t call each other “kids” anymore? But do they still love crafts? This galaxy glitter jar 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 ‘adult’ version of our Counting Stars light up bottle, doesn’t require mom’s involvement (even young elementary kids can make them independently) and the finished product is ideal for display near a bed.

Related: Our Craft of Glowing Star Counting Bottles

Follow the step-by-step instructions below to create this fun craft filled with layers of cotton balls in all the colors of the galaxy night sky.

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Necessary craft supplies for tweens

How to Make Your Own DIY Galaxy Jar Craft

Step 1

Fill your bottle halfway with cotton balls. You’ll compress the cotton balls at the bottom of the jar – they’ll fill the bottom inch of the bottle when you’re done.

2nd step

Pour a little water into the bottle, enough to saturate the cotton balls.

how to make galaxy pots

Step 3

Pour 2-3 drops of food coloring into your bottle. Add a splash of shiny paint and a pinch of glitter.

Step 4

Then start over! Repeat step instructions: add more cotton balls, more water, sprinkle with glitter and shiny juice.

Keep adding new colors and layers until your bottle is completely full.

craft project for older children

Tip from our experience in making this handcrafted fairy pot

We have found that as the layers grow, it becomes more and more difficult to fill the jar. Using a stiff straw or wooden sticks to push the cotton balls back into their layer is helpful.

Step 5

Put the lid on your bottle securely.

How to keep your Galaxy Jar cool and sparkling

As your bottle ages, you’ll want to rehydrate the cotton balls to keep the “sky look” blurry.

Place the bottle on your windowsill to allow the glossy paint to charge. As your kids fall asleep, they’ll see a sky, including a sparkling Milky Way staring at them, from their own galaxy bottle.

how to make a galaxy in a bottle

Galaxy jar makes a great gift or group activity for kids

My tween is making them for all of his friends for their homemade Christmas swap. She collects glass bottles!

We also used this galaxy jar craft as a sleepover craft idea. Then everyone can calm down to go to bed at night {laughter} and have a memory they made at home the next day to remember the party.

While a sensory potty would normally be considered a sensory activity for young children, older children – teens and tweens – need stress relief too! It can be soothing to have a coping mechanism like our Dark Galaxy Pots as a calm pot for kids of all ages… pssst… and adults!

Activity time
15 minutes

Total time
15 minutes


estimated cost
$ 5


  • Clear glass bottle with a lid – a milk bottle, other clear recycled bottles or mason jars work great

  • Cotton balls – many, many cotton balls

  • Shine

  • Food coloring

  • The water

  • Glow in the dark paint


  • wooden stick, spoon or stiff straw

  • cup of water


  1. Fill the bottom of the jar with cotton balls until your bottle is half full.
  2. Pour a little water to saturate the cotton balls.
  3. Add 2-3 drops of food coloring, spray paint and silver glitter.
  4. Repeat the process over and over again adding new layers of cotton wool, paint in different colors and food coloring to give your bottle a dark galaxy glow.
  5. If necessary, use a stick, spoon, or straw to push the cotton balls out, compacting them to the bottom of the mason jar.
  6. Add a cover.


To refresh your galaxy jar in the coming weeks, add a little water.

More Galaxy Crafts from Kids Activities Blog

How did your DIY galaxy jar go?


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