While cleaning the basement I found some old Dewalt hard plastic blow molded tool cases. Just happens that my Bravo 4 blades were sitting right next them...can you see the light bulb come on? With minor modification the 4 blades fit perfect. Mine fit tight enough in the case as not to rattle around at all. You could add egg crate type foam or styra foam if there is any concerns of the prop being loose in the box. I believe both boxes were from circular saws...one 110volt one was cordless. one took no trimming the other took some trimming with a utility knife. I will try to post some pics when I get a chance.

JRider