Seems like cutting those changing waves would be kind of hard to do with out some thing like a duplicator or CNC router set up,,,, I think I can picture in my head what you are talking about as to the changing radius's... you would be not only routing in the X and Y axis,, but now trying to also rout in the Z axis... Also, using that Ogee Bit,,,I think it will cut its full ogee when its plunged down to its maximum depth,, but as you raise it to make a shallower cut towards the small end of the shell,, it will leave the flat part of the wood still showing ??? Unless you start to lean them towards a point,, ,, but then it seems like the one side may look like you want but the other side may not,,, ,,,,,,,,,,,,, oh its too late and my head is starting to hurt,,,, hahahah
geesh,, if you can do that with out some kind of aid,,,, My hat would certianly be off to you, sir.
But,,,, there sure is a lot of talent out here on this forum,,perhaps some one can come up with an idea. If you get it done with just using a jig of some kind,, I would sure like to hear about it,,, or better yet, see a few pictures of what you used to get it done,,
Maybe you should think of maybe using some hand gouges and carve them by hand,,, it would not be to hard to do them,, if you have ever tried to do any hand carving,,, But its not something you would want to do if you were planning on making a big stack of those boxes,,,
Good luck with the boxes....