I used a plastic takeaway container to put in a piece of paper, a few marbles and some drops of paint. Once the lid was on she happily shook it around, threw it on the floor and otherwise 'painted' with it.
Master D also got in on the action, using the more conventional methods. And because he loves mixing colours he really enjoyed rolling the marbles and seeing the colours mingle.
We now have some great wrapping paper!
Happy painting, Kelly