Begin with a large circle, and draw a straight line right down the middle.Draw two triangles for the top, then add a thin rectangle and curved lines for the bottom.These cool shades are really just two half-circles with some straight lines.Begin with a large circle, and draw a straight line right down the middle.Draw two triangles for the top, then add a thin rectangle and curved lines for the bottom.These cool shades are really just two half-circles with some straight lines.