I remember this idea from an art theory class I took as an elementary education major student. Pointillism is a technique of painting in which small, distinct dots of pure color are applied in patterns to form an image. Supplies include: watercolor paper, watercolor, and cotton swabs. Lightly outline with pencil a picture you want to fill in with the dotted colors of your choice. Below is my sample. (It's suppose to look like an apple, pear, and orange.)
Another example is A Sunday Afternoon on the Island of La Grande Jatte by Georges Seurat
~~ JM