The concept here is very simple, so the results are totally worth it. Gather up any old crayons, or you could even buy new ones if you like, but with 4 kids in the house, we have plenty of old odd sets. Let the kids remove the paper (strengthening fine motor skills for the win!) and snap or cut into small enough pieces to fit in your desired mould. *make sure your mould is heat proof!
Heat the oven to around 120c, it really doesn’t need to be very hot. Place in the oven on another hard tray (like a pizza tray) because they will be super runny before they set again and you don’t want crayon spilt inside your oven – ask me how I know? If you do happen to spill a few drops, wipe it off with paper towel straight away, much easier to remove it while its still runny.
Once they are all fully melted, remove from the oven to cool. I put them in the fridge after a while, because I am impatient. Then just press them out of the moulds and you’re done.
And now for the fail. Originally I wanted to make crayon rings, for something a bit different on valentines day. So along with my heart tray, I ordered a ring tray. We were all set to go and excitedly looking forward to the results.
But alas, this tray must have been for the freezer only. I was sitting at my desk and thought ‘what is that smell’ walked to the oven to check and holey smokes! I opened the door quickly, at which point the lot burst into flames! So I threw some water on it in my panicked state. The results?
A house full of toxic smoke and a colourful mess to clean up! Oh dear. So please, learn from my mistake, make sure you check the temperature ratings!
stay.at.home.life 
I’m glad you saw the flames before it got worse. Anyway, this is a cute activity!:) and a fun way to recycle old or broken crayons 🙂