How To Make Lego Crayons

recycled lego crayons
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Learn how to make lego crayons and keep your kids busy with crafting and coloring! 

Making lego crayons is a SUPER fun and easy way to entertain your kids and use all of the leftover and broken crayons you have kept the past few years!

If you kid LOVES Legos here are lots of ways you can incorporate legos into learning and activities! 

Don't forget to check out how to make your playdoh, another kid-friendly craft they will love! 

How To Make Lego Crayons

These DIY Lego Crayons will be a hit for your lego lover! Learn how to make lego crayons in just a few easy steps! You can use new crayons, but obviously if you have a ton of broken crayons those would be best!

Supplies You Need To Make Lego Crayons

  • Empty tin cans with the labels taken off, or some other oven-safe containers (to melt crayons in)
  • Lego Molds (check out the ones below)
  • Other molds for different shapes, if desired
  • Crayons – Use your old broken crayons, if you don't have any you can get some here.

Molds for Lego Crayons

Other Molds for Recycled Crayons


broken crayons for legos

Peel your crayons (this is the pain in the butt part!). Separate crayons by color.

Put each color in its own can. If you mix them in this step, you'll get an ugly brown color.

Preheat oven to 300*F.

Put cans of crayons on a cookie sheet, just in case they spill. Trust me, melted crayon stuck to the oven does not smell good.

diy recycled crayon tutorial

Bake for 10 minutes, longer if necessary. The crayons will be liquid when they're ready to use.

Quickly and carefully pour your crayons into the molds you have set out. Spray them with cooking spray ahead of time if you find they are sticking. You can use silicone molds or plastic candy/chocolate molds for this step.

recycled lego crayons

After about 15 minutes, set the crayons in the freezer* to harden if you're in a hurry. Flip the mold over and the crayons should pop right out.

*Note: This can make your crayons brittle, so if you have the time and patience to let them sit out on the counter and cool, do it that way.

diy princess crayons recycled

The best part about this project is finding different molds to use. I've made crayons in every shape you can imagine – from brains to princesses, we've used lots of recycled crayons in this house!



Tags : craftsdiy
Laurie Bennett

Laurie Bennett

Site Owner
I share delicious, Weight Watchers - Friendly recipes and chat regularly about online business & blogging!!


  1. This is awesome! I’m going to do the princess crayons as a project that the kiddos can do at a Princess Party we’re hosting next weekend. Thanks!!

  2. I just made little lego guys for my son to give away as valentines. Instead of putting the mold in the oven, we put it in the microwave for 5-8 minutes, until the wax was melted. It worked great!

    Lego Crayons

  3. Hi, did you use the “ice-cube tray” to make the Lego men? I read on a different website hers melted!! Then again she was melting the crayons directly inside the tray…

    1. If you click the link to the tray in the post it’s the exact one I’ve used dozens of times – and no melting! :) It’s a special material, not like regular ice cube trays that are made of plastic.

  4. What a great way to recycle all those old broken crayons!
    Thanks for sharing with my NO RULES Weekend Blog Party!
    Have a great week :)

  5. What a fantastic way to reuse old crayons!! Pinned:). Thanks so much for sharing this idea @ Dream. Create. Inspire Link. Have a great rest of your week and take care, Tara

  6. Looks like my kids will surely enjoy this activity. Anyways, thank you for sharing them. Cheers!

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