$fn = 100;

head_top_inner_radius = 76;
band_top_width = 5;
band_thickness = 3;
head_top_outer_radius = head_top_inner_radius + band_thickness;
buffer=10;
band_height = 127;

head_side_inner_radius = 127;
head_side_outer_radius = head_side_inner_radius + band_thickness;

module hairband() {

  difference() {

    difference() {
    
      union() {
        difference() {
          cylinder(r=head_top_outer_radius, h=band_top_width, center=true);
          cylinder(r=head_top_inner_radius, h=band_top_width+buffer, center=true);
        }

        translate([head_side_outer_radius - head_top_outer_radius,0,0])
          difference() {
          cylinder(r=head_side_outer_radius, h=band_top_width, center=true);
          cylinder(r=head_side_inner_radius, h=band_top_width+buffer, center=true);
        }

        translate([-(head_side_outer_radius - head_top_outer_radius),0,0])
          difference() {
          cylinder(r=head_side_outer_radius, h=band_top_width, center=true);
          cylinder(r=head_side_inner_radius, h=band_top_width+buffer, center=true);
        }
      }

      difference() {
        translate([-(head_side_outer_radius - head_top_outer_radius),0,0])
          cylinder(r=head_side_inner_radius, center=true, h=band_top_width+buffer);
        translate([-head_side_outer_radius, -0, 0])
          cube([head_side_outer_radius*2, head_side_outer_radius*2, band_top_width+buffer*2], center=true);
        translate([0, head_side_outer_radius/2, 0])
          cube([head_side_outer_radius*2, head_side_outer_radius, band_top_width+buffer*2], center=true);
      }

      difference() {
        translate([(head_side_outer_radius - head_top_outer_radius),0,0])
          cylinder(r=head_side_inner_radius, center=true, h=band_top_width+buffer);
        translate([head_side_outer_radius, 0, 0])
          cube([head_side_outer_radius*2, head_side_outer_radius*2, band_top_width+buffer*2], center=true);
        translate([0, head_side_outer_radius/2, 0])
          cube([head_side_outer_radius*2, head_side_outer_radius, band_top_width+buffer*2], center=true);
      }

      translate([0, -band_height, 0])
        cube([head_side_inner_radius*2, head_side_inner_radius, band_top_width+buffer*2], center=true);

    }


    difference() {
      cylinder(r=head_side_outer_radius*2+buffer, h=band_top_width+buffer, center=true);

      cylinder(r=head_top_outer_radius, center=true, h=band_top_width+buffer*3);
      intersection() {
        translate([head_side_outer_radius - head_top_outer_radius,0,0])
          cylinder(r=head_side_outer_radius, h=band_top_width+buffer*3, center=true);
        translate([-head_top_outer_radius+buffer/2,-head_top_outer_radius,0])
          cube([head_top_outer_radius+buffer,head_top_outer_radius*2,band_top_width+buffer*3], center=true);
      }
      intersection() {
        translate([-(head_side_outer_radius - head_top_outer_radius),0,0])
          cylinder(r=head_side_outer_radius, h=band_top_width+buffer*3, center=true);
        translate([head_top_outer_radius+buffer,-head_top_outer_radius,0])
          cube([head_top_outer_radius+buffer,head_top_outer_radius*2,band_top_width+buffer*3], center=true);
      }
    }
  }
}

hairband();

module ears() {
  translate([0, 0, - band_top_width / 2]) {
    rotate([90,0,30]) {
      translate([-0.2, 0, 1]) {
        linear_extrude(height=58.5) {
          square([band_thickness, band_top_width]);
        }
      }
    }
    rotate([90,0,-30]) {
      linear_extrude(height=57.5) {
        square([band_thickness, band_top_width]);
      }
    }

    translate([band_thickness/2, 0, 0])
      cylinder(h=band_top_width, r=band_thickness/2);
  } }

translate([-57, 17, 0]) {
  rotate([0, 0, 30]) {
    translate([head_top_outer_radius/2, head_top_outer_radius, 0])
      ears();
  }
}

mirror([200, 0, 0]) {
  translate([-57, 17, 0]) {
    rotate([0, 0, 30]) {
      translate([head_top_outer_radius/2, head_top_outer_radius, 0])
        ears();
    }
  }
}