You will need watercolour paper, watercolour pencils or crayons (we use watercolour crayons for this one mostly), white ink or white acrylic paint, pencil, 2-3 soft brushes eg, small detailed #0 and/or#1 and round brush #4 and/or #6, a water cup and paper towel.
Watercolour paint sets we use are usually cake palettes of various brands. We recommend Koi, Crayola’s basic set (for absolute beginners) and Windsor and Newton. If you are using tubes, we recommend Windsor and Newton. Watercolour cake palette or tube paints are also acceptable for this but more of a wash for a similar look of the crayons.