Silk Crayons will make you re-think your definition of a crayon… is it a crayon? Pastel? Or a watercolour paint? Silk Crayons go on silky smooth like a pastel (the colours are more vivid than a standard wax crayon) and then to change the look you simply add water with a paintbrush to create a watercolour effect. The extra fun bit is each crayon comes in a twist-up tube (just like mum’s lipstick), so there’s no mess and no waste.