p0 = [0,  20];
p1 = [2, 18.5];
p2 = [4.0, 16];
p3 = [6, 12];
p4 = [8, 7.5];
p5 = [10, 0];
p6 = [0, 0];

points = [p0, p1, p2, p3, p4, p5,p6];
// Polygon
rotate([-90,0,0]){
difference(){
difference(){
difference(){
rotate([90,0,0]){
linear_extrude(height=15)
    polygon(points);
}
translate([6,-7.5,12]){
rotate([0,180+43,0]){
translate([-3.5,0,0]){
$fn = 50;
cylinder(h = 6, r = 3.8);
cylinder(h = 7.5, r = 3.3);
}
}
}
}
translate([7.9,0,0]){
rotate([0,-47,0]){
translate([-10,-19,0]){
    cube([10,20,15]);
}}}}
translate([1.5,0,0]){
rotate([0,-47,0]){
translate([-10,-6,0]){
    cube([25,10,2.8]);
}}}}}