Recycled Rainbow Crayons.

recycled rainbow crayons

My book marks are full of recycled crayon links. I saw the idea first at Little Birdie Secrets, then I found these amazing alphabet recycled crayons at Lets Explore, and these cut with cookie cutters at Danny Daily. So I’ve been saving old bits of crayons for a long time knowing that one day we’d give this a go, and eventually we did.

The Middle Boy and I set to work a few weeks back to make rainbow crayons to go in the treat bags for the Twinadoe’s party.

recycled crayons

Muski helped me take the papers off all the crayons and we sorted them into rainbow colours. Then we laid a crayon of each colour in the correct order into the moulds. We used a silicone baking mould, but they use a regular metal muffin tin to make these pretty crayons at Not Without Salt.. We put the silicone mould onto an oven tray to give it a bit of support then popped them in a low oven for about 30 minutes, or until all the crayons had melted.

recycled rainbow crayons

After they cool it is easy to pop out your new crayons.

recycled rainbow crayons

We used a variety of different branded and quality crayons and we did have the problem where the wax separated from the pigment a little in some cases, leaving a clear layer on the back of the crayons. We ended up gently scraping or rubbing the clear layer off, but it really is better to use good quality crayons. It also might have worked better if we’d used the method described here and melted each colour separately. Perhaps we could have scooped the clear layer of wax off the top before spooning a layer of each colour into the moulds.

But that seems much more tricky and not so easy for small people to help with and I think our crayons turned out pretty well in the end!

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Read the comments or scroll down to add your own:

  1. says

    these look great and for having not done all the things you think might have created a better result, they have turned out perfectly from what I can see in the photos!

  2. says

    One of my 5 year old’s friends’ Mums showed me this trick a while back and I’ve been saving up my stubby crayons to do it as a holiday activity with the kids! They look fantastic ;-)

  3. says

    I saw Karen Pang do this on Playschool a while ago (she made star-shaped crayons). She did hers in the microwave, but didn’t really give much detail -went straight from putting old crayon pieces in the tin to “here’s one we prepared earlier”. Now I don’t have to research it myself – thanks!

  4. says

    I have a bag of old crayons that I have been keeping, planning to google some info on what I can do with them.

    I’m all inspired to try this now with my children over the Christmas holidays. Thanks for the links & inspiration.

  5. says

    I’m going to try making them in the microwave. Having the oven on in this heat does not appeal. My girls want to make them for Christmas gifts much cheaper than buying Lego moulds for the party.

    Thankyou for this great inspiration Kate.

  6. says

    I’ve often seen this too and would love to try it, but all our broken bits of crayons seem to disappear, only to be found months later down the back of couches and chairs *sigh*

  7. Alissa says

    I did the layering version for Hannahs rainbow party and while it was time
    Consuming, it wasn’t hard. And the end result was so cool! I wanted to write in rainbows all week lol!