Making empty LOD's

[Frostbite2600]

Is it possible to make empty/ 0% LOD's for small objects?
It seems like a waste of processing power to use 2 triangles for an object that's too small to see at distance just to get the minimum size requirements.
I tried to use an empty cube in Blender but got an error when I tried to upload it because it was too small and
4 vertices connected by 3 edges but without faces gives a LOD contains no polys.

Thanks

 

[Helena]

I guess you have to stick to tiny lods. Also, if the obect itself have few polygons, you do not have to make the lod shapes smaller. Just copy&paste. The data is just numbers so it won't add to file size.