Pencil

 
float highPen = 75;
void setup () {
  size (350, 150);
  background (204, 255, 0);
}
void draw () {
  draw_pencil (highPen);
  highPen = highPen -1;
  if (highPen <= 0) {
    highPen =height-50;
  }
}

void draw_pencil (float highPen) {
  background (204, 255, 0);
  noStroke ();
  fill (153, 51, 0);
  triangle (20, highPen, 70, highPen-20, 70, highPen+20);
  rect (70, highPen-20, 200, 40);
  fill (255);
  rect (270, highPen-20, 30, 40);
  fill (0);
  triangle (20, highPen, 40, highPen-7, 40, highPen+7);
}