It is so simple to make a rotating color wheel. All you need is little time and other simple supplies from the stationary. Here are the simple instructions to make a rotating colored wheel: 1) Take a piece of white cardboard, and from it cut a circle about 3 inches across. 2) Now from the middle of this cut another circle about 3/4 inches across. 3) Divide the circle into 7 equal parts, and paint or crayon the sections with the colors of the rainbow: red, orange, yellow, green, blue, indigo, and violet.