I’ve always had mixed feelings about crayons. There’s no denying the pleasure of opening up a fresh pack of those perfectly chiseled tips, and having them stare back at you in a wonderfully satisfying range of colours. Then the first one breaks, paper gets peeled off, and that perfect little box transforms into a plastic tub filled with broken, waxy, crayon bits. In this project, the crayons never get to the broken bits stage. They just melt into a glorious rainbow of colours. Hats off to the person who came up with this great idea, which my daughter and her friend stumbled upon in cyberspace.