i think an nice little helper would be an TransformableGroup that inherits from Transformable and Drawable
its works like an vector for Transformable/Drawable methods but when you use Transform methods like move or rotate it also moves and rotates the object inside the group (but the group has its own rotation orign)
when you draw the TransformableGroup it also draws all objects using its own Transform infomation.
i didnt get a sample code working because i think Transformable need more virtual methods
