I did not see this anywhere, and someone asked the question about how to make the graphics for drawing on eggs and other spherical type objects. Evil Mad Scientist ( Drawing a smiley face - Evil Mad Scientist Wiki ) has a great tutorial for using Inkscape Draw Freely | Inkscape
More Evil Mad Scientist Info The Original Egg-Bot Kit - Evil Mad Scientist Wiki
There are great samples at MakerBot Thingiverse if you search 'eggbot'
Eggbot Resources
Eggbot