Featured in some of the best Mobile Suit Gundam episodes ever, yes everybody its the Ball Pod! I created it in sketch (took 4 hours) exported it as a .dae file, opened it in Blender, and the re-exported it as a .stl file. Enjoy!

NOTE: Earlier, the file that was on this page would not open correctly for some reason. I have reposted the file, deleting the old one. This one works! Enjoy!