My kids and I love playing with colours. Especially my 4 yo. She loves drawing, colouring, painting, you name it. Few months ago, we played with shampoo in the garage floor. We whisked shampoo till it turned very soft and add some food colouring. She played for hours. And we made that lovely view. Well, my 2 yo boy just love to threw in on the floor and stepped on it ( sorry, no pic!). Unfortunately, now the garage is occupied. We need to find another place ( well, at least when we move back to our own house ).