To make an optical illusion drawing
In the center of a sheet of art paper, draw a 1" circle. Continue making larger circles around the first one until the entire paper is filled with concentric circles.
Place your hand in the middle of the concentric circles and trace both your hand and your arm.
Choose three crayons or colored pencils to use on the arm and three different crayons or colored pencils to use on the circles.
Starting with the center of the circles, color the hand portion of that circle with one crayon.
With a different crayon, move to the next outer circle and color ONLY the hand portion. Continue this pattern until the entire hand is colored.
Next, using one of the three color choices for the circles, color the center circle...only the portion that is NOT part of the hand.
Move to the next outer circle. Choose another crayon and color ONLY the circle portion. Continue to rotate all three colors until all the concentric circles have been colored.
And your optical illusion is complete!