All objects are 3D Solid Models.
You can download 3D datas from here.
Copyright statement is on the last lines of this page.
All objects in the calendar 2012 are modeled using
The model of March 2012 is Horsetail , tastes good !
The model of April 2012 is Randoseru .
Rabit (Jan.2011) and
Banana(Nov.2011) are also made by milling.