First draw wavy line vertically, then draw a single line horizontally (see right side of image). Fill the space between vertical lines with either a convex or concave line depending on if it is above or below the horizontal line
Vbs possible big art project. Great idea for a mosaic--Maybe copy the photo in black and white on copier, then have kids complete it by covering all black and white by looking at the original. Could use an original of Jesus.