I agree with the website that children need to be able to express themselves. I am a grandmother and I do have a special room for when the grandchildren come over. In their room besides the bed and TV they have many art things such as: an old wallpaper book sample, construction paper, writing paper, newsprint paper. They also have crayons, colored pencils, markers, an art easel water colors in their room. But art is not all there is in the room, there is a kitchen set so they have the dramatic play area. Different types of blocks, for their building fun is there. So children or grandchildren need a lot of different types of things available so there imagination can run wild when it come to play time. Check out  http://www.bestgoldenlife.com/2008/06/11/art-projects.html