adding nice ufo.

data/mesh/ship_ufo.scad

@@ -0,0 +1,26 @@
+difference() {
+//union() {
+    union() {
+        // body
+        scale([1,1,0.5]) sphere(1, $fn=32);
+
+        // cockpit
+        translate([0,0,0.3]) sphere(0.5, $fn=16);
+    }
+
+    // small balls carved out of the body
+    smallBallsCirle = 1;
+    offsetHeight = 0.5;
+    translate([0, -smallBallsCirle, offsetHeight]) {
+        union() {
+            numBalls = 8;
+            translate([0,1,0]) {
+                for (i=[0:numBalls]) {
+                    rotate(360*i/numBalls) translate([smallBallsCirle,0,0]) {
+                        sphere(0.45, $fn=12);
+                    }
+                }
+            }
+        }
+    }
+}