This spring, one day we made a wonderful mess mixing colours, using the three basic colours red, blue and yellow. As our intention was mixing them on our sheets, not on the plates, we had to clean the paintbrushes constantly.
The water on the table served this purpose and we cleaned the paintbrushes after the use of every single colour. Once we had finished making three new colours, purple, orange and green, we let our creativity run wild and painted whatever idea our artistic brain was developing.
Once we had finished, the papers were soaking wet, our hands looked like the ones of professional painters and the tables showed the result of what had been a fun painting lesson!