Take an inventory of your inner or outer world and make a list of objects that you find there.
Make a second column beside the first, and write down the color of each object.
Make a third column. In this one, write the name of a different object that is the exact same color as the corresponding object in the third column.
Then write a scene or story that names some of the objects and shows colors by naming other things that are the same color. Here is a more detailed version of these directions.