Harry Potter Model Magic Butter Slime Recipe

Looking for a magical new slime recipe? Over time we have perfected our baking soda and contact lens solution slime recipe, we’ve also made glow in the dark slime, fluffy slime and even cornstarch slime. But we needed something new. Something really different. Then we discovered Butter Slime made with Model Magic! We wanted to do something truly magical with it, and our Harry Potter Model Magic Slime Recipes were the answer!

Harry Potter BUTTER Slime RECIPES

A collage of 4 butter slimes featuring each Hogwarts House from Harry Potter Overlay text says Harry Potter Butter Slime

Disclaimer: This article may contain commission or affiliate links. As an Amazon Influencer I earn from qualifying purchases.
Not seeing our videos? Turn off any adblockers to ensure our video feed can be seen. Or visit our YouTube channel to see if the video has been uploaded there. We are slowly uploading our archives. Thanks!


What makes this slime recipe different from our previous slime recipes is two things, first we used Slime Activator which makes it easier for those who struggle with the portions of our normal baking soda and contact lens solution recipe. However, you can use our beloved slime recipe too. I’ll share tips on that in a moment.

The second difference with this Butter Slime Recipe is a little magic… Model Magic! Model Magic is a modeling clay kids can use for sculpting and creating shapes. But it also makes incredibly cool slime. Model Magic slime is super stretchy when you pull on it slowly, but if you pull quickly SNAP! It breaks. It’s also an incredibly smooth slime, very soft and pliable, with no stickiness. Almost like a thinking putty slime. Another benefit of Model Magic is that you can use it to colour your slime, so you don’t need to use a colorant. Although, we did choose to add a little extra colour when making our Harry Potter slimes because we wanted the colours magically vibrant!

Harry Potter Hogwarts House Butter Slime RECIPES

For this project we decided to make 4 different recipes, one for each Hogwarts house because we love all things Harry Potter! Then we placed them in mason jars with cute little custom labels. They make incredible party favours or as a project to do at a Harry Potter themed party or camp where the kids can take home their creations.

Kids can make all 4 Hogwarts House Butter Slimes, or they can just do their Hogwarts House. Maybe after being sorted by our Cauldron Sorting Bath Bombs!

Harry Potter Butter Slime Ingredients

This recipe makes ONE Hogwarts House Butter Slime. To make more than one, simply repeat the recipe.

1 cup of clear PVA school glue
1/4 cup Elmer’s Slime Activator
1/8 cup water
1/2 cup Model Magic in either Red, Blue, Green and Yellow
Optional: 10 drops of your favourite essential oil
Optional: 1 teaspoon of slime colorant in a matching colour to your Model Magic
Optional: 1 tablespoon biodegradable glitter

Elmer's E305  Washable School Glue, 5 oz Bottle, 4 Pack, ClearElmer's Glue Slime Magical Liquid Activator Solution, 8.75 fl. oz. Bottle - Great for Making SlimeCrayola Model Magic, Deluxe Craft Pack, Clay Alternative, Gift for Kids, 14 Single Pack12 Color Bath Bomb Soap Dye - Skin Safe Bath Bomb Colorant Food Grade Coloring for Soap Making Supplies, Natural Liquid Soap Colorant for DIY Bath Bomb Supplies Kit, Slime, Crafts - with InstructionsBiodegradable Glitter Chunky Glitter for Festivals. Eco Friendly Body Glitter for Hair Glitter and Nail Glitter (Violet)Ball Glass Mason Jar with Lid and Band, Regular Mouth, 12 Jars


1 large bowl
1 small bowl
Mason Jar
House Labels – Join our mailing list to get these free!

Members of our Mailing List Get Hogwarts House Inspired Mason Jar Labels. Join Now and get access to lots of additional resources and a weekly newsletter packed with educational fun!

    We respect your privacy. Unsubscribe at anytime.
    Powered By ConvertKit

    How to Make Gryffindor House Butter Slime

    Empty the glue and activator into a large bowl. Mix it together until it turns white.

    In the small bowl, add the water and red colourant the water (food colouring works too). If you wish to add essential oil, add that too. Mix.

    Now add the red model magic and water mixture to large bowl with the glue mixture. Mix well. When the mixture begins to solidify, it is ready to take out. The Model Magic may not blend all the way in, but that’s OK. We have one more step!

    Pick up mixture from bowl and knead on a flat surface. Work it really well with your hands until the consistency is smooth, and the Model Magic is completely blended in.

    If you wish to add glitter, sprinkle it in during the last bit of kneading.

    Voila! Gryffindor Butter Slime!

    Store in a mason jar with one of our Gryffindor labels on top. Or in a zip lock bag.

    Harry Potter Hogwarts House Labels on Mason Jars Filled with Butter Slime

    Hufflepuff, Slytherin, and Ravenclaw Slime Recipes

    To make Hogwarts House slimes for Hufflepuff, Slytherin and Ravenclaw make the same recipe but replace the colour of the model magic and colourant.

    Hufflepuff is yellow.

    Slytherin is green.

    Ravenclaw is blue.

    How To Make Butter Slime Without Slime Activator

    When it comes to slime I really like our original recipe. It is always fun to test other recipes, but I always find myself coming back to this recipe that we started using years ago.

    If you don’t want to use slime activator, you can make this recipe using our baking soda and buffered saline recipe.

    Simply make your slime using our traditional recipe, once it is made, add in the modeling clay and knead it all together. So simple! Here are the details if you are not familiar with our usual recipe.

    BUTTER Slime Recipe Without Slime Activator

    1 cup glue
    1/4 teaspoon of baking soda
    1/2 tablespoon contact lens solution (buffered saline)
    1/2 cup Model Magic

    Start by adding the glue to a bowl. Then mix in the baking soda. I like super stretchy slime, so I tend to use 1/4 teaspoon, but if you want a thicker slime you can use 1/2 teaspoon. I find this Butter Slime gets thick enough later on, so 1/4 is enough, but that’s the fun of slime, playing with recipes to find your perfect recipe! So play!

    Stir in 1/2 tablespoon of contact lens solution (buffered saline) and continue to stir until it pulls into a ball. I like to use 1/2 tablespoon with this recipe because it makes for a stretchier slime. Yes it will be stickier, but we address that in a moment when we add the Model Magic. If the stickiness really bothers you, try using 1 tablespoon of buffered saline.

    Knead it all together for a few minutes until it is combined and stretchy. Now place the Model Magic in the middle of your slime and start kneading it all together. It will be a hand work out, but it makes the most amazing Butter Slime!

    If you want your slime thicker, add a bit more Model Magic until the consistency is perfect for you.

    I hope you have a magical time making our Harry Potter Butter Slime recipes!

    Harry Potter glasses and wand lay on a yellow table with a jar of red Gryffindor butter slime. Small pictures of Hufflepuff, Slytherin and Ravenclaw Butter Slime are inlaid.


    Butterbeer slime
    Harry Potter Bath Bombs
    Wingardium Leviosa Science Experiment Make A Feather Levitate