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DIY's + Crafts

Melted Rainbow Crayons

Ever wondered what to do with all those broken crayons? Especially the little tiny pieces in the bottom of the crayon bin that not even your little toddler’s fingers can grip. Well, I’ve got a solution! And it’s not to throw them away, as tempting as that may be. I’ve got a fun little craft that even the kids can help participate in and it recycles every little broken crayon.

All you need is a shaped mold to melt the crayons in and an oven. I prefer a silicone mold tray because it’s super easy to just pop the crayons out once they’ve cooled off. We always use this heart shaped silicone mold.


The first thing I do is remove all of the paper off the crayons and sort them into piles based on color. Of course, if your kids are helping out with this craft, you can let them put the colors in the molds however they want. I will note that I’ve found that Crayola crayons seem to work best for this craft. They always melt easier and faster.

(When my three year old and I made these last time, she created some awesome tie-dye hearts and gave them to her dance school friends for Valentine’s day with a little note that said, “Color your heart out!” These make great little party favors, too.)


Next, you can either snap the crayons into smaller pieces, or do what I always do and use a knife to cut them. They don’t need to be in super small in size; just small enough to arrange in whatever shape molds you have.


Arrange them in the molds however you wish. Remember the bottom of the mold will be the top of the finished crayon, so I try to make sure I have a variety of colors on the bottom and just fill in the top until the mold is pretty full.
Next, just bake them at 200 degrees for about 20 minutes. Let your beautiful new crayons cool completely before popping them out of the mold.


You never really know exactly what you’re going to get with these, which is the best part. We love oo-ing and ahh-ing over the different swirly designs we end up with.

Enjoy your fun, color changing crayons!


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  • Such a neat idea! Pinning to try with my little one <3

    Green Fashionista

    • Kristen Harrison

      Yay! It’s so fun!

  • So cute! When I was younger, we would melt crayons on hot rocks to make cool designs!

    Jennifer
    Effortlessly Sophisticated

    • Kristen Harrison

      Oh that sounds so fun, too! Thank you, Jennifer!

  • Carrie @ Curly Crafty Mom

    How cute is this? My daughter would love this and we have an entire wipes container filled with old crayons. I just need a mold!

    Carrie
    curlycraftymom.com

    • Kristen Harrison

      Thank you, Carrie! 🙂