MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Oh yeah there is one. I forgot to upload it. I'll search for the 3D object.
The other one you postet should also work. You only need to drill out the hole in the middle big enouth.
The one we made needs the ping pong balls like seen in the picture.