Melted Crayon Hearts | Recycled Crayon Craft

We made these melted crayon hearts for Valentine's Day this year, but this would also be a great kids' craft year round.  Pick different molds for different occasions, and turn your old, broken crayons into something new.

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DIY Melted Crayon Hearts - recycling old crayons

How to Melt Crayons in the Oven

Melting crayons in the oven is a super simple process.  All you need is an oven, some old, broken crayons, a silicone mold, and a baking sheet to stabilize your mold.

We love this craft because it allows you to take old, used crayons and turn them into something new.  The kids love mixing colors, too, so that they get multicolored crayons.

melted crayon hearts

How to Melt Crayons (in the Oven) in a Nutshell

  • Cut up your old crayons into small pieces.
  • Place the crayon pieces in a silicone mold.
  • Heat your oven to about 150 degrees.
  • Place your silicone mold on a baking sheet.
  • Bake your crayons for about 20 minutes, or until all the chunks have melted.
  • Let your crayon cool, then pop them out of the mold.

Materials

Step 1: Cut crayons up into small pieces and place in a silicone mold.

This greatly speeds up the melting process.  I just used a big pair of craft scissors to cut up our old crayons.

Arrange your crayon pieces into molds.  Make solid-color crayons or mix it up by combining colors to make color-changing crayons.

melted crayon mold

Step 2: Put your mold on a baking sheet and put it into the oven.

Your oven should be at around 150 degrees.  It's a good idea to preheat the oven first.

Bake your crayons for about 20 minutes or until all the chunks have melted into liquid.

melted crayons in heart mold

Step 3: Remove your new crayons after they have cooled.

As they cool, the color of your crayons will lighten a little bit.  You'll know the crayons are done when you can press on them and they don't give.  This will take roughly an hour.

Once your new crayons are cool, pop them out of the molds.

Tada!  Brand new crayons recycled from old, broken ones.  Just like magic.

recycled melted crayons
melted crayon hearts craft