Christmas Ornaments

I've grown fond of openSCAD. It's a very nice package and free. A single line of code constructs a spherical Christmas ornament.

Difference() {sphere(r=25,$fn=48); sphere(r=24,$fn=48); }

The above line makes a hollow sphere about 2 inches across with 1 mm thick walls. A few additional lines of code builds a connector so that it can be hung on a tree. The resulting stl file takes about an hour to print and produces a smooth, light, (about 6 grams), ornament. Unfortunately, while printi