The damage on the three broken spheres is hard to see, but they did turn out pretty well.
I printed the large square based one at 20% infill. 3 of the others broke, but I had a loose wire or something going on with my printer. The round based versions are much shorter and I printed them at 40% infil. I should probably thicken the base a bit, but I'm going to see what they look like painted first.