The last time we went over to the Maryland Science Center Whinnie and Theo created ‘marble art.’
Simple project. Just get a jar, can or bowl with a tight fitting lid. Cut pieces of paper small enough to go into the container and curve around the inside wall without needing to be folded up.
Get paint and marbles. Put a bit of paint in a small bowl, add a few marbles and roll them around in the paint. Then put the marbles in the container with the paper.
Put the lid on the container and roll the marbles around. Voila! Marble Art.
Have fun, experiment with rolling some marbles in one color and others in other colors. Experiment with rolling the marbles around a little or a lot.