Neocolor II water soluble crayons by Caran d’Ache are quite simply the best wax crayons on the market. They come in a wide range of 120 colours which includes some metalics. The colours are lush and vibrant with a high ratio of pigment to wax which makes them so much better than brands like Crayola. They are really good for sketching (see the images below) but can also be used for more finished works that are built up in layers. Their real beauty shines through with the addition of water which turns them instantly into paint. The colours are even more vibrant and alive with a wash of water unlike some other brands that can appear faded and washed out.