Making chunky crayons

Morty_007

Hi all,
I hope this is the right place to post this and someone will know what on earth I am talking about...

I am trying to make chunky crayons out of old crayons, for my son. Have followed the exact instructions as I found them here (posted below) but the colours have all melded together and the different waxes have separated....any suggestions please?
Thanks in advance
Morty
x

Method I am using...

Chunky Crayons

What you’ll need:

• Crayons (like I said, you could use ones you already have or buy some. I purchased 5 boxes of 24-pack crayons for 20 cents each - back to school bargains!)
• mini muffin pan (one that you don’t mind getting a little crayon on)
• exacto knife (optional)

You’ll want to preheat your oven to 265 degrees F. Peel off all the paper from the crayons (for the new ones, I found it much quicker to remove the paper in one smooth motion if I carefully ran the exacto knife down the center of the paper and peeled the paper back), and break them into 1/2″ to 1″ pieces. Arrange two to three like colors in each slot, then bake for 6-8 minutes (don’t over bake - you want them just melted so you can’t distinguish the crayon shape anymore). Let them congeal a little on the counter, then place them in the freezer until they are firm (approx. 30 minutes). They should then pop right out.
This is great for little hands that aren’t steady enough to hold thin crayons. They can wrap their whole hands around them and go to town without breaking them.