How about a Miles Sparrowjet & Miles Student. Both one-offs which I saw flying many times at Shoreham.
What's left of the Student is on display at the Museum of Berkshire Aviation. http://home.comcast.net/~aero51/html/exhibits/student.htm
I heard that someone was rebuilding the Sparrowjet to its original Sparrowhawk configuration some years ago. I wonder what happened to it. It's still on the CAA civil register.