If you’ve got some old broken crayons laying around, it’s easy to make these recycled rainbow crayons!
These fun rainbow crayons make a great birthday party favour, or a fun craft activity, or just a super cool way to recycled broken crayons into rainbow crayons that are lots of fun to draw with!
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Turning old broken crayons into gorgeous rainbow crayons is a super fun activity to try with your kids.
We made these gorgeous heart shaped rainbow crayons for our twins rainbow themed birthday party. They made great party favours and cost us next to nothing to make.
Rainbow crayons are also lots of fun to draw with as you never know quite what colour will go on to the paper next!
Start collecting up your old crayons and when you have enough you can turn them into rainbow crayons!
How to Make Recycled Rainbow Crayons
All you need to make your own set of recycled crayons you’ll need a bunch of old crayons, and a silicone baking mold.
We used a silicone, heart shaped baking mold, but you could use any silicone molds you like. Be aware that the larger, cupcake sized molds will take a lot of crayons to fill them, so you might prefer to look for silicone chocolate molds instead.
You can find silicone baking molds in all kinds of cool shapes, here are a few more of our favourites designs, just click on the image for more information or to buy them:
The first step to making recycled rainbow crayons is to remove the paper from all your old crayons. This is a great fine motor activity for little hands to help with!
As you are taking the paper off the crayons you might like to sort the crayons into rainbow colours if you want to make rainbow crayons like ours that have each colour of the rainbow in them. Of course you can make any colour combinations you like, or just add a random mix of each colour too.
Place the silicone mold onto a baking sheet and fill each shape with your old crayons. It doesn’t matter if the crayons or are broken just add pieces into the mold in whatever design you like.
Place the mold filled with old crayons into a low oven (we set our oven at 130 C) for about 30 minutes or until all the crayons have melted. Check often, during the process, and be aware that smaller molds filled with less crayons will melt faster.
Allow the crayons to cool and harden completely before you pop out your beautiful recycled rainbow crayons!
We used a variety of different branded and quality crayons and we discovered that the lower quality crayons can have an issue with the wax separating from the coloured pigment. This can leave a clear wax layer on one side of the crayons, but that is easily scraped off with butter knife.
Of course the better quality of crayons you start with, the better quality you will end up with!
- Old crayons with the paper removed
- Silicone baking mold
- Baking tray
- Remove all the paper from old crayons so they are ready to be recycled.
- Sort the old crayons into rainbow colours if you wish
- place the silicone baking mold on a baking tray
- Preheat your oven to 130 C
- Place pieces of old crayons into the silicone mold.
- Place the crayon filled mold into the oven for 30 minutes, or until the crayons have all melted.
- Allow each crayon to cool completely before popping them out.
If you are left with a clear wax layer on the bottom of your crayons, scrape it off with a butter knife.
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