Here's a really fun activity to do with your kids on a rainy day... recycled rainbow crayons. It's a fabulous way to use up all those silly little bits of crayon left that no-one wants to use anymore. It's very simple and is pretty much an immediate result, which is always good for impatient toddlers and pre-schoolers. So here is how you do it:
1. Get together all the little ends & broken bits of crayons you can find. Make sure any paper is peeled off them. Preheat oven to 120 deg C.
2. Put desired amount of muffin cases in a muffin tin, we used 6 for about 1/2 cup crayon pieces. I find its a good idea to use 2 muffin cases in each muffin tin hole as some of the oils from the crayons does soak through when melting.
3. Put a few pieces of crayon in each muffin case. Mix up the colours, you will be surprised at the end results! You can make them quite thin for older children, or thick and chunky for younger ones.
4. Put tray in oven. It will take 10 - 15 minutes for the crayons to melt. Keep in mind it doesn't take that much heat or time for the crayons to melt fully. I'm not sure about you, but I vividly remember leaving a crayon in the back of my Mum's car when I was young and getting in a LOT of trouble when it melted everywhere on a hot day!
5. Take tray out of oven and leave in a safe spot to cool and harden, about 30 - 60 minutes. Peel paper off when completely hard.
6. Finally, enjoy some rainbow colouring!