Sulfur Cubes drops Sulfurballs and from it you can do Block Frame

First, sulfur cubes will drop Sulfurballs. New item, and from it you can make something like Item Frame, but for blocks. This looks really similar like just item frame, but you cant put in it item, you can only blocks... When you put in Block Frame block, it will really look like vanilla block, like "BlockDisplay" and, when you put this block on wall you can literally make anything on wall or floor! Door, slabs and more! With it builders literally can make door on floor or vertical slabs on walls using block frame!