This is a process art experience - layers and layers of fun! Hide the materials and bring them out one by one, the little ones love the element of surprise and it helps them concentrate for longer.
Piece of rope
Water in a jug
Sprinkles: Wool, strips of coloured paper, pieces of pipe cleaner, confetti, glitter etc.
Hand towel - each child should have a hand towel (always when working with paint or ink), to dry the brush and to clean painted fingers