A fun twist on our easy butter slime for space fans, this Galaxy Butter Slime has an amazing squishy, fluffy texture that unlike normal fluffy slimes does not deflate after repeated use.

DIY Galaxy Butter Slime Recipe

Slime used to be a weekly occurrence in this house, but I’m happy to say we’ve gotten that down to about once a month.

We were going through glue and shaving cream like crazy and I always found myself scrubbing little dots of dried up slime off of the flour and table. I love the benefits that sensory play gives to children (brain development, fine motor building and creative problem solving) but the cost and mess was adding up.

Luckily for me, this butter slime recipe solves both of those issues. The recipe only requires a few tablespoons of each ingredient, so one small bottle of glue and one canister of shaving cream can last us for months, and this slime is way less drippy and messy than other fluffy slimes.

The clay added to butter slime not only gives it a great moldable texture and is incredibly satisfying to squeeze and shape, it also helps keep the slime together so it’s not just dripping everywhere, leaving little globs of slime mess wherever the kids are playing.

For this batch, we actually combined three other butter slime batches from previous weeks to make one giant galaxy slime. Of course, you can make it all in one go, but I liked getting to spread out the slime love and getting so much use out of our materials.

The glitter and star confetti added a fun touch of sparkle to our slime but it can be left out if you’re not a glitter fan. The star confetti was a bit scratchy for my hands but my daughter and her friends didn’t voice any objections.

What kind of clay do you use for butter slime? While there are a few people who are adamant you need to use Model Magic clay for butter slime, I actually liked the texture (and repeat use) of using a regular modelling clay. The model magic butter slime was fluffier and had a thick texture with awesome resistance, while the modelling clay butter slime was smoother and while thick it could be squished a lot more.

Slime can require a bit of experimentation and patience, especially if you’re still new to it. If you run into any slime fails, check out this troubleshooting post to help fix your slime.

If you’re looking for the ultimate slime guide – you need to check out our Slime Book with over 40 amazing, unique slimes:

You can purchase The Slime Book on Amazon, Book Depository, or at your local bookstore!

(Read more about The Slime Book and what it contains here.)

Check out our quick video for how to make this fun butter slime recipe – and see it in action, then don’t forget to scroll down to grab your free printable recipe:

Galaxy Butter Slime Ingredients

• White Glue
• Shaving Cream
• Baking Soda
• Contact solution <– this is the brand we use, it must contain boric acid to work as a slime activator
• Modelling Clay in Blue, Purple and Black <– can use model magic or regular polymer modelling clay, depending on the results you want
• Gold Glitter
• Star Confetti

Scroll down to the printable recipe card for full measurements.

Tip: You can use a borax solution instead of contact solution – or liquid starch. For the borax solution, dissolve 1/2 Tablespoon of borax in 1/2 cup hot water.

Kitchen Tools You May Find Helpful

• Large bowl
• Measuring spoons
• Spatula or popsicle sticks for mixing <– I like these spatulas because they are one solid piece and don’t have removable heads for bacteria to get trapped underneath. Plus they are heat-resistant and have a lifetime warranty.

How to Make Galaxy Butter Slime

Combine 3 Tablespoons each of the glue and shaving cream until completely combined – being careful not to overmix.

Add 1/4 teaspoon of the baking soda, stir well, and then add 2 Tablespoons of the contact solution.

Stir the slime until it forms a cohesive ball.

Pick it up and knead it a bit, then add food coloring if using.

Knead the purple modelling clay into the slime mixture until fully combined.

Set aside and repeat this process with the blue modelling clay, then the black modelling clay.

Pull the three slimes into long strips, then lay side by side.

Twist the slimes together to combine, then add glitter and confetti stars, if desired.

Pin this Squishy Fluffy Galaxy Slime recipe for your next rainy day activity:

Grab your free printable recipe card for our fluffy galaxy butter slime recipe:

I hope your kids love getting to play with this glittery galaxy slime – and you appreciate how practically mess-free it is!

For more easy slime recipes, check out our full slime recipe collection here:

For more fun sensory activities for kids, check out our collection of sensory play activities here: