int[] x = {
  12,34,54,87,97,131,153,254};

void setup(){
  size(300,300);
  smooth();
}

void draw(){
  background(255,15);
  for (int i = 0; i < x.length; i++){
    strokeWeight(x[i]/4); 
    stroke(0);
    strokeCap(SQUARE);
    float y = random(-3,3);
    ellipse(x[i],150,0,50);
    stroke(random(255), random(255), random(255));
    ellipse(x[i]+2,152,0,50);
    stroke(0,12);
    strokeWeight(x[i]);
    line(x[i]+y,y , x[i],height);
  }
}