Lego Star Wars Molten Lava Slime for Kids

Yes, another slime for kids to get into!!  The boys and I have been having a blast with our golden slime on its own and with “gold” coins.  We also used it to create a fun Lego Star Wars experience, which we dubbed Molten Lava Slime!  I was inspired to create this slime fun after a great conversation with Asia of Fun at Home with Kids and Jessica of Epic Fun for Kids (and Play Trains)!

Lego Star Wars Anakin sinking into molten lava slime for kids

Slime for Kids to Make for Lego Star Wars Play

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We were inspired by the scene in Star Wars where Obi-Wan and Anakin duel on the planet Mustafar.  The planet has lots of active volcanoes, so the two fight amid pools of hot lava.  Obviously, parents need to decide if the scene from the actual movie is appropriate for their own kiddos.  This post is focused on sensory and pretend play for children who love Legos!  Seeing the movie isn’t really necessary to have tons of fun with it!

Molten lava slime for kids is made with 4 different slime colors

Engineer and I made 4 batches of slime – yellow, red, orange, and gold (recipes can be found below).  Since Engineer is 7, he was involved in the whole process, from start to finish.  He helped measure, mix, and set up the activity.  The slimes were arranged on a large white platter based on Engineer’s “vision”, although I was permitted to help a little!

Molten lava slime for kids provides a great medium for Lego Star Wars pretend play

Once the slimes were ready to go, Engineer brought in his Legos.  He chose a variety of mini-figures to play in the slime — stormtroopers, droids, Obi-Wan, and our own version of Anakin.  It turns out we didn’t have the offical Lego Anakin, so we hobbled one together with parts of other mini-figs we did have!  The lightsabers weren’t exactly the right color either, but we were fine stretching our imaginations.

Engineer ran a few experiments with the slime, mostly focused on how long it took for different Legos to sink.  This went on for sometime, then he got into stretching and poking at the slime.

Obi-Wan and Anakin battle on Mustafar created with molten lava slime for kids

After that, we settled into our battle.  We took turns being Obi-Wan and Anakin, with lots of sound effects and exclamations!  I must admit, I really got into it.  Engineer found that very entertaining, giggling half the time.  I love the sound of his laughter.  At the end of our duel, Anakin was left to sink into the molten lava.  The slime bubbled and everything, which added even more dramatic effect to our play.

Lego Star Wars reenactment of Anakin on Mustafar with this molten lava slime for kids

By this point, most of the slime was mixed together.  This resulted in a beautiful, sparkly dark orange slime.  We’re still playing with the lava slime now!  Snoopy and Little Hurricane have enjoyed exploring it as well.  For those kiddos who aren’t into Lego Star Wars, dinosaurs are a great alternative for molten lava slime pretend play!

Molten lava slime for kids to play with dinosaurs

Recipes – Slime for Kids to Make

Be sure to add the glue first, then mix in the liquid watercolors (food coloring works, as well).  Slowly add in the liquid starch, stirring well along the way.  Knead the slime for a minute or two, then check the stickiness and stretch.  If more starch is needed, be sure to add it in a tablespoon at a time and knead together.

Red Lava Slime Recipe

Yellow and Orange Slime Recipes (I used the same basic recipe for both, just changing up the watercolors I used)

Gold Lava Slime Recipe
Please see my previous post for this recipe.

So, do you think you’re up for creating some molten lava slime with the kiddos?  If so, I would LOVE to hear how it went!!

For another AMAZING Lego Star Wars slime activity, check out Epic Fun for Kids’ Yoda Slime!  My friend Jessica, of Play Trains, just started Epic Fun for Kids — Engineer and I are incredibly excited to see what she’ll be sharing there.



  1. Renee says

    My little engineer (almost 7!) is very interested in making this, but he’s worried that his Legos might get stuck in the slime. I told him they would be fine, but he is very insistent that I double-check with you! The safety of Legos is not to be taken lightly!

    • says

      Oh my goodness, thank you for the giggle! My Engineer would definitely get along with yours! Yes, the Legos will sink into the slime and get slime on them. Much of the slime can come off by using fingers to remove it. Then giving the Legos a short bath gets the rest! We’ve done this A LOT and the Legos are doing great. :)

  2. says

    Thanks for this post and description! This will be my first go at making slime with my grandchildren. I had one question about the properties of slime. If the various colors of slime are put together, do they mix together? Do you store them separately? Are any of the ingredients staining on clothes, countertops or table tops? Does it dry out or stay ‘slimey’?
    Also I used your suggestions also for purchasing the items required for the slime. Thank you for that!
    Thanks so much!

    Sincerely, Gwen Studnick

  3. Sheri says

    How long does the slime keep? I assume you can reuse it for multiple play times? If so, how do you suggest storing it? Thank you!


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