var svg = Pablo(demoElement).svg({height: 100}),
 sizes = [50, 30, 10];
Pablo([
 Pablo.circle({cx:50, cy:50, fill: 'cyan'}),
 Pablo.circle({cx:50, cy:50, fill: 'black'}),
 Pablo.circle({cx:50, cy:50, fill: 'red'})
 ])
 .reverse() // Remove reverse to see the new order
 .each(function (item, i) {
 Pablo(item).attr('r', sizes[i]);
 svg.append(item);
 });