There are many ships that fit into this category. Unfortunately many of them will never be published because actual plans do not exist, nor have ever existed. Let me 'splain...
Gene Schaffer's "Blackbird" (so named by Bill Simons because in those days Gene never named his ships) is just one of many examples of very successful designs that were "built on the wood." In other words, the builder just measured out the nose length and the hinge line-to-hinge line dimensions on 1/8-inch balsa sides and went from there. Sometimes there was a rough drawing of the side view of the fuselage shapes; sometimes not. I know that Bill Simons, Gene, and I often built our ships in that manner. My Caprice was not formally drawn until many years after the original was just a distant memory. So, how could it possibly be accurate? Well, I knew the fuselage dimensions, what wing was used, an I had a folder containing templates of the "swoopy" bits like the wing tips, rudder and spats. Connecting the dots after laying these dimension out on a board yielded what I consider as accurate a representation of the original as are any of the Classic designs seen on the field. Unfortunately Bill Simons (who "designed" many ships in this manner) did not keep any folders of templates of the parts of his ships. None of us even remotely thought that anyone in the future might actually want to build these designs.
A good example of this is my pick for the most beautiful non-published design of all time, the Stiletto 700 by three-time World Champion, Les McDonald. I have the original templates from which that model's wing was cut, but, sadly, the model no longer exists, and Les did not draw any formal plans for it.
I've spoken with Les about this model several times over the years and asked him if he could work up plans for it. Les declined I think because he knew whatever he came up with would not be absolutely accurate to the original. He's got scruples... Who knew...
Another beautiful Les McDonald original was his Tropicaire. Les freely admits that it was just a mildly restyled Jim Kostecky-designed Formula S, but it had a character all its own. I'd build one for Super 70s if plans existed...
I've been told that there are programs that can examine a photo that was taken at any given angle, and if only one dimension on the photo is a known one, then the rest of the dimensions can be extrapolated. Perhaps this may be an acceptable way to reclaim some of these great, non-published designs
By the way, in answer to the question above in this thread about how the Lacemaker flew, I can tell you that three time World Champion, Bill Werwage flew that plane and said that it was one of the finest flying models he had ever flown.
Bob Hunt