Blocks" that can be horizontally assembled into a large medieval castle, DUPLO size
Your choice:
* Print bricks with base platform attached
* Print stackable objects that you can put on top of a base plate
* Combine the two
The source code is no different from its "parent", i.e. thing http://www.thingiverse.com/thing:31284 that uses LEGO size for the STLs.
I just generated DUPLO size and proportions instead of Lego size and proportions, for folks who don't want to learn OpenScad.
Therefore this "derivative" is just a Duplo "subdirectory" that includes a subset. Please go and read the rest in the parent.