Using this scene in the unity editor, a prefab can be designed and created out of cubes then saved for use within another project. There are several useful techniques that have been included in this tool which allow for more detailed and stylised models to be created. Includes colour select tool and grid for scale and design.
New Feature - Save prefabs as combined meshes
Created in Unity 4.3
Platform: PC or MAC

Web Player:
Demo
YouTube Channel
uSurp

Read the Readme.pdf for Installation guide and Manual